18518788

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{331}}^1$

素因数の和:603

約数の個数: 24

約数和(自身を含む): 33130944

約数和(自身を除く): 14612156

約数列:

[1, 2, 4, 71, 142, 197, 284, 331, 394, 662, 788, 1324, 13987, 23501, 27974, 47002, 55948, 65207, 94004, 130414, 260828, 4629697, 9259394, 18518788]

約数ペア:

[(1, 18518788), (2, 9259394), (4, 4629697), (71, 260828), (142, 130414), (197, 94004), (284, 65207), (331, 55948), (394, 47002), (662, 27974), (788, 23501), (1324, 13987)]