21635830

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{983}}^1$

素因数の和:1092

約数の個数: 32

約数和(自身を含む): 40808448

約数和(自身を除く): 19172618

約数列:

[1, 2, 5, 10, 31, 62, 71, 142, 155, 310, 355, 710, 983, 1966, 2201, 4402, 4915, 9830, 11005, 22010, 30473, 60946, 69793, 139586, 152365, 304730, 348965, 697930, 2163583, 4327166, 10817915, 21635830]

約数ペア:

[(1, 21635830), (2, 10817915), (5, 4327166), (10, 2163583), (31, 697930), (62, 348965), (71, 304730), (142, 152365), (155, 139586), (310, 69793), (355, 60946), (710, 30473), (983, 22010), (1966, 11005), (2201, 9830), (4402, 4915)]