21161688

素因数分解:

$2^3\times 3^1\times {\mathrm{397}}^1\times {\mathrm{2221}}^1$

素因数の和:2627

約数の個数: 32

約数和(自身を含む): 53061360

約数和(自身を除く): 31899672

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 397, 794, 1191, 1588, 2221, 2382, 3176, 4442, 4764, 6663, 8884, 9528, 13326, 17768, 26652, 53304, 881737, 1763474, 2645211, 3526948, 5290422, 7053896, 10580844, 21161688]

約数ペア:

[(1, 21161688), (2, 10580844), (3, 7053896), (4, 5290422), (6, 3526948), (8, 2645211), (12, 1763474), (24, 881737), (397, 53304), (794, 26652), (1191, 17768), (1588, 13326), (2221, 9528), (2382, 8884), (3176, 6663), (4442, 4764)]