21419660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{863}}^1$

素因数の和:962

約数の個数: 48

約数和(自身を含む): 48335616

約数和(自身を除く): 26915956

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 73, 85, 146, 170, 292, 340, 365, 730, 863, 1241, 1460, 1726, 2482, 3452, 4315, 4964, 6205, 8630, 12410, 14671, 17260, 24820, 29342, 58684, 62999, 73355, 125998, 146710, 251996, 293420, 314995, 629990, 1070983, 1259980, 2141966, 4283932, 5354915, 10709830, 21419660]

約数ペア:

[(1, 21419660), (2, 10709830), (4, 5354915), (5, 4283932), (10, 2141966), (17, 1259980), (20, 1070983), (34, 629990), (68, 314995), (73, 293420), (85, 251996), (146, 146710), (170, 125998), (292, 73355), (340, 62999), (365, 58684), (730, 29342), (863, 24820), (1241, 17260), (1460, 14671), (1726, 12410), (2482, 8630), (3452, 6205), (4315, 4964)]