21157696

素因数分解:

$2^6\times 7^1\times {\mathrm{83}}^1\times {\mathrm{569}}^1$

素因数の和:671

約数の個数: 56

約数和(自身を含む): 48646080

約数和(自身を除く): 27488384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 83, 112, 166, 224, 332, 448, 569, 581, 664, 1138, 1162, 1328, 2276, 2324, 2656, 3983, 4552, 4648, 5312, 7966, 9104, 9296, 15932, 18208, 18592, 31864, 36416, 37184, 47227, 63728, 94454, 127456, 188908, 254912, 330589, 377816, 661178, 755632, 1322356, 1511264, 2644712, 3022528, 5289424, 10578848, 21157696]

約数ペア:

[(1, 21157696), (2, 10578848), (4, 5289424), (7, 3022528), (8, 2644712), (14, 1511264), (16, 1322356), (28, 755632), (32, 661178), (56, 377816), (64, 330589), (83, 254912), (112, 188908), (166, 127456), (224, 94454), (332, 63728), (448, 47227), (569, 37184), (581, 36416), (664, 31864), (1138, 18592), (1162, 18208), (1328, 15932), (2276, 9296), (2324, 9104), (2656, 7966), (3983, 5312), (4552, 4648)]