21905295009

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{317}}^1\times {\mathrm{331}}^1$

素因数の和:818

約数の個数: 64

約数和(自身を含む): 32564706048

約数和(自身を除く): 10659411039

約数列:

[1, 3, 13, 39, 53, 101, 159, 303, 317, 331, 689, 951, 993, 1313, 2067, 3939, 4121, 4303, 5353, 12363, 12909, 16059, 16801, 17543, 32017, 33431, 50403, 52629, 69589, 96051, 100293, 104927, 208767, 218413, 228059, 314781, 416221, 434603, 655239, 684177, 1248663, 1303809, 1364051, 1696901, 1771843, 4092153, 5090703, 5315529, 5561131, 10597627, 16683393, 22059713, 23033959, 31792881, 66179139, 69101877, 72294703, 137769151, 216884109, 413307453, 561674231, 1685022693, 7301765003, 21905295009]

約数ペア:

[(1, 21905295009), (3, 7301765003), (13, 1685022693), (39, 561674231), (53, 413307453), (101, 216884109), (159, 137769151), (303, 72294703), (317, 69101877), (331, 66179139), (689, 31792881), (951, 23033959), (993, 22059713), (1313, 16683393), (2067, 10597627), (3939, 5561131), (4121, 5315529), (4303, 5090703), (5353, 4092153), (12363, 1771843), (12909, 1696901), (16059, 1364051), (16801, 1303809), (17543, 1248663), (32017, 684177), (33431, 655239), (50403, 434603), (52629, 416221), (69589, 314781), (96051, 228059), (100293, 218413), (104927, 208767)]