21262116

素因数分解:

$2^2\times 3^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{331}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 51202368

約数和(自身を除く): 29940252

約数列:

[1, 2, 3, 4, 6, 12, 53, 101, 106, 159, 202, 212, 303, 318, 331, 404, 606, 636, 662, 993, 1212, 1324, 1986, 3972, 5353, 10706, 16059, 17543, 21412, 32118, 33431, 35086, 52629, 64236, 66862, 70172, 100293, 105258, 133724, 200586, 210516, 401172, 1771843, 3543686, 5315529, 7087372, 10631058, 21262116]

約数ペア:

[(1, 21262116), (2, 10631058), (3, 7087372), (4, 5315529), (6, 3543686), (12, 1771843), (53, 401172), (101, 210516), (106, 200586), (159, 133724), (202, 105258), (212, 100293), (303, 70172), (318, 66862), (331, 64236), (404, 52629), (606, 35086), (636, 33431), (662, 32118), (993, 21412), (1212, 17543), (1324, 16059), (1986, 10706), (3972, 5353)]