21099595

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{331}}^1$

素因数の和:427

約数の個数: 32

約数和(自身を含む): 29640960

約数和(自身を除く): 8541365

約数列:

[1, 5, 11, 19, 55, 61, 95, 209, 305, 331, 671, 1045, 1159, 1655, 3355, 3641, 5795, 6289, 12749, 18205, 20191, 31445, 63745, 69179, 100955, 222101, 345895, 383629, 1110505, 1918145, 4219919, 21099595]

約数ペア:

[(1, 21099595), (5, 4219919), (11, 1918145), (19, 1110505), (55, 383629), (61, 345895), (95, 222101), (209, 100955), (305, 69179), (331, 63745), (671, 31445), (1045, 20191), (1159, 18205), (1655, 12749), (3355, 6289), (3641, 5795)]