21333914

素因数分解:

$2^1\times 7^3\times {\mathrm{137}}^1\times {\mathrm{227}}^1$

素因数の和:387

約数の個数: 32

約数和(自身を含む): 37756800

約数和(自身を除く): 16422886

約数列:

[1, 2, 7, 14, 49, 98, 137, 227, 274, 343, 454, 686, 959, 1589, 1918, 3178, 6713, 11123, 13426, 22246, 31099, 46991, 62198, 77861, 93982, 155722, 217693, 435386, 1523851, 3047702, 10666957, 21333914]

約数ペア:

[(1, 21333914), (2, 10666957), (7, 3047702), (14, 1523851), (49, 435386), (98, 217693), (137, 155722), (227, 93982), (274, 77861), (343, 62198), (454, 46991), (686, 31099), (959, 22246), (1589, 13426), (1918, 11123), (3178, 6713)]