20840976

素因数分解:

$2^4\times 3^4\times {\mathrm{13}}^1\times {\mathrm{1237}}^1$

素因数の和:1270

約数の個数: 100

約数和(自身を含む): 65012332

約数和(自身を除く): 44171356

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 36, 39, 48, 52, 54, 72, 78, 81, 104, 108, 117, 144, 156, 162, 208, 216, 234, 312, 324, 351, 432, 468, 624, 648, 702, 936, 1053, 1237, 1296, 1404, 1872, 2106, 2474, 2808, 3711, 4212, 4948, 5616, 7422, 8424, 9896, 11133, 14844, 16081, 16848, 19792, 22266, 29688, 32162, 33399, 44532, 48243, 59376, 64324, 66798, 89064, 96486, 100197, 128648, 133596, 144729, 178128, 192972, 200394, 257296, 267192, 289458, 385944, 400788, 434187, 534384, 578916, 771888, 801576, 868374, 1157832, 1302561, 1603152, 1736748, 2315664, 2605122, 3473496, 5210244, 6946992, 10420488, 20840976]

約数ペア:

[(1, 20840976), (2, 10420488), (3, 6946992), (4, 5210244), (6, 3473496), (8, 2605122), (9, 2315664), (12, 1736748), (13, 1603152), (16, 1302561), (18, 1157832), (24, 868374), (26, 801576), (27, 771888), (36, 578916), (39, 534384), (48, 434187), (52, 400788), (54, 385944), (72, 289458), (78, 267192), (81, 257296), (104, 200394), (108, 192972), (117, 178128), (144, 144729), (156, 133596), (162, 128648), (208, 100197), (216, 96486), (234, 89064), (312, 66798), (324, 64324), (351, 59376), (432, 48243), (468, 44532), (624, 33399), (648, 32162), (702, 29688), (936, 22266), (1053, 19792), (1237, 16848), (1296, 16081), (1404, 14844), (1872, 11133), (2106, 9896), (2474, 8424), (2808, 7422), (3711, 5616), (4212, 4948)]