21874419

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{3371}}^1$

素因数の和:3487

約数の個数: 24

約数和(自身を含む): 36471552

約数和(自身を除く): 14597133

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2163, 3371, 6489, 10113, 23597, 30339, 70791, 212373, 347213, 1041639, 2430491, 3124917, 7291473, 21874419]

約数ペア:

[(1, 21874419), (3, 7291473), (7, 3124917), (9, 2430491), (21, 1041639), (63, 347213), (103, 212373), (309, 70791), (721, 30339), (927, 23597), (2163, 10113), (3371, 6489)]