21753816

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4177}}^1$

素因数の和:4224

約数の個数: 64

約数和(自身を含む): 64174080

約数和(自身を除く): 42420264

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 31, 42, 56, 62, 84, 93, 124, 168, 186, 217, 248, 372, 434, 651, 744, 868, 1302, 1736, 2604, 4177, 5208, 8354, 12531, 16708, 25062, 29239, 33416, 50124, 58478, 87717, 100248, 116956, 129487, 175434, 233912, 258974, 350868, 388461, 517948, 701736, 776922, 906409, 1035896, 1553844, 1812818, 2719227, 3107688, 3625636, 5438454, 7251272, 10876908, 21753816]

約数ペア:

[(1, 21753816), (2, 10876908), (3, 7251272), (4, 5438454), (6, 3625636), (7, 3107688), (8, 2719227), (12, 1812818), (14, 1553844), (21, 1035896), (24, 906409), (28, 776922), (31, 701736), (42, 517948), (56, 388461), (62, 350868), (84, 258974), (93, 233912), (124, 175434), (168, 129487), (186, 116956), (217, 100248), (248, 87717), (372, 58478), (434, 50124), (651, 33416), (744, 29239), (868, 25062), (1302, 16708), (1736, 12531), (2604, 8354), (4177, 5208)]