18418744533

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{587}}^1\times {\mathrm{4139}}^1$

素因数の和:4774

約数の個数: 48

約数和(自身を含む): 29679229440

約数和(自身を除く): 11260484907

約数列:

[1, 3, 7, 19, 21, 57, 133, 361, 399, 587, 1083, 1761, 2527, 4109, 4139, 7581, 11153, 12327, 12417, 28973, 33459, 78071, 78641, 86919, 211907, 234213, 235923, 550487, 635721, 1483349, 1494179, 1651461, 2429593, 4450047, 4482537, 7288779, 10459253, 17007151, 31377759, 46162267, 51021453, 138486801, 323135869, 877083073, 969407607, 2631249219, 6139581511, 18418744533]

約数ペア:

[(1, 18418744533), (3, 6139581511), (7, 2631249219), (19, 969407607), (21, 877083073), (57, 323135869), (133, 138486801), (361, 51021453), (399, 46162267), (587, 31377759), (1083, 17007151), (1761, 10459253), (2527, 7288779), (4109, 4482537), (4139, 4450047), (7581, 2429593), (11153, 1651461), (12327, 1494179), (12417, 1483349), (28973, 635721), (33459, 550487), (78071, 235923), (78641, 234213), (86919, 211907)]