20165933879

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{11987}}^1$

素因数の和:12172

約数の個数: 48

約数和(自身を含む): 26785987200

約数和(自身を除く): 6620053321

約数列:

[1, 7, 13, 19, 49, 91, 133, 139, 247, 637, 931, 973, 1729, 1807, 2641, 6811, 11987, 12103, 12649, 18487, 34333, 83909, 88543, 129409, 155831, 227753, 240331, 587363, 1090817, 1594271, 1666193, 1682317, 2960789, 7635719, 11159897, 11663351, 20725523, 21660509, 31657667, 81643457, 145078661, 151623563, 221603669, 411549671, 1061364941, 1551225683, 2880847697, 20165933879]

約数ペア:

[(1, 20165933879), (7, 2880847697), (13, 1551225683), (19, 1061364941), (49, 411549671), (91, 221603669), (133, 151623563), (139, 145078661), (247, 81643457), (637, 31657667), (931, 21660509), (973, 20725523), (1729, 11663351), (1807, 11159897), (2641, 7635719), (6811, 2960789), (11987, 1682317), (12103, 1666193), (12649, 1594271), (18487, 1090817), (34333, 587363), (83909, 240331), (88543, 227753), (129409, 155831)]