21993384

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1$

素因数の和:191

約数の個数: 128

約数和(自身を含む): 67092480

約数和(自身を除く): 45099096

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 31, 41, 42, 56, 62, 82, 84, 93, 103, 123, 124, 164, 168, 186, 206, 217, 246, 248, 287, 309, 328, 372, 412, 434, 492, 574, 618, 651, 721, 744, 824, 861, 868, 984, 1148, 1236, 1271, 1302, 1442, 1722, 1736, 2163, 2296, 2472, 2542, 2604, 2884, 3193, 3444, 3813, 4223, 4326, 5084, 5208, 5768, 6386, 6888, 7626, 8446, 8652, 8897, 9579, 10168, 12669, 12772, 15252, 16892, 17304, 17794, 19158, 22351, 25338, 25544, 26691, 29561, 30504, 33784, 35588, 38316, 44702, 50676, 53382, 59122, 67053, 71176, 76632, 88683, 89404, 101352, 106764, 118244, 130913, 134106, 177366, 178808, 213528, 236488, 261826, 268212, 354732, 392739, 523652, 536424, 709464, 785478, 916391, 1047304, 1570956, 1832782, 2749173, 3141912, 3665564, 5498346, 7331128, 10996692, 21993384]

約数ペア:

[(1, 21993384), (2, 10996692), (3, 7331128), (4, 5498346), (6, 3665564), (7, 3141912), (8, 2749173), (12, 1832782), (14, 1570956), (21, 1047304), (24, 916391), (28, 785478), (31, 709464), (41, 536424), (42, 523652), (56, 392739), (62, 354732), (82, 268212), (84, 261826), (93, 236488), (103, 213528), (123, 178808), (124, 177366), (164, 134106), (168, 130913), (186, 118244), (206, 106764), (217, 101352), (246, 89404), (248, 88683), (287, 76632), (309, 71176), (328, 67053), (372, 59122), (412, 53382), (434, 50676), (492, 44702), (574, 38316), (618, 35588), (651, 33784), (721, 30504), (744, 29561), (824, 26691), (861, 25544), (868, 25338), (984, 22351), (1148, 19158), (1236, 17794), (1271, 17304), (1302, 16892), (1442, 15252), (1722, 12772), (1736, 12669), (2163, 10168), (2296, 9579), (2472, 8897), (2542, 8652), (2604, 8446), (2884, 7626), (3193, 6888), (3444, 6386), (3813, 5768), (4223, 5208), (4326, 5084)]