21997690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{15383}}^1$

素因数の和:15414

約数の個数: 32

約数和(自身を含む): 46521216

約数和(自身を除く): 24523526

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 15383, 30766, 76915, 153830, 169213, 199979, 338426, 399958, 846065, 999895, 1692130, 1999790, 2199769, 4399538, 10998845, 21997690]

約数ペア:

[(1, 21997690), (2, 10998845), (5, 4399538), (10, 2199769), (11, 1999790), (13, 1692130), (22, 999895), (26, 846065), (55, 399958), (65, 338426), (110, 199979), (130, 169213), (143, 153830), (286, 76915), (715, 30766), (1430, 15383)]