20986992

素因数分解:

$2^4\times 3^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:168

約数の個数: 160

約数和(自身を含む): 67287360

約数和(自身を除く): 46300368

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 36, 37, 39, 48, 52, 54, 72, 74, 78, 101, 104, 108, 111, 117, 144, 148, 156, 202, 208, 216, 222, 234, 296, 303, 312, 333, 351, 404, 432, 444, 468, 481, 592, 606, 624, 666, 702, 808, 888, 909, 936, 962, 999, 1212, 1313, 1332, 1404, 1443, 1616, 1776, 1818, 1872, 1924, 1998, 2424, 2626, 2664, 2727, 2808, 2886, 3636, 3737, 3848, 3939, 3996, 4329, 4848, 5252, 5328, 5454, 5616, 5772, 7272, 7474, 7696, 7878, 7992, 8658, 10504, 10908, 11211, 11544, 11817, 12987, 14544, 14948, 15756, 15984, 17316, 21008, 21816, 22422, 23088, 23634, 25974, 29896, 31512, 33633, 34632, 35451, 43632, 44844, 47268, 48581, 51948, 59792, 63024, 67266, 69264, 70902, 89688, 94536, 97162, 100899, 103896, 134532, 141804, 145743, 179376, 189072, 194324, 201798, 207792, 269064, 283608, 291486, 388648, 403596, 437229, 538128, 567216, 582972, 777296, 807192, 874458, 1165944, 1311687, 1614384, 1748916, 2331888, 2623374, 3497832, 5246748, 6995664, 10493496, 20986992]

約数ペア:

[(1, 20986992), (2, 10493496), (3, 6995664), (4, 5246748), (6, 3497832), (8, 2623374), (9, 2331888), (12, 1748916), (13, 1614384), (16, 1311687), (18, 1165944), (24, 874458), (26, 807192), (27, 777296), (36, 582972), (37, 567216), (39, 538128), (48, 437229), (52, 403596), (54, 388648), (72, 291486), (74, 283608), (78, 269064), (101, 207792), (104, 201798), (108, 194324), (111, 189072), (117, 179376), (144, 145743), (148, 141804), (156, 134532), (202, 103896), (208, 100899), (216, 97162), (222, 94536), (234, 89688), (296, 70902), (303, 69264), (312, 67266), (333, 63024), (351, 59792), (404, 51948), (432, 48581), (444, 47268), (468, 44844), (481, 43632), (592, 35451), (606, 34632), (624, 33633), (666, 31512), (702, 29896), (808, 25974), (888, 23634), (909, 23088), (936, 22422), (962, 21816), (999, 21008), (1212, 17316), (1313, 15984), (1332, 15756), (1404, 14948), (1443, 14544), (1616, 12987), (1776, 11817), (1818, 11544), (1872, 11211), (1924, 10908), (1998, 10504), (2424, 8658), (2626, 7992), (2664, 7878), (2727, 7696), (2808, 7474), (2886, 7272), (3636, 5772), (3737, 5616), (3848, 5454), (3939, 5328), (3996, 5252), (4329, 4848)]