19781844

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1297}}^1$

素因数の和:1376

約数の個数: 48

約数和(自身を含む): 48846336

約数和(自身を除く): 29064492

約数列:

[1, 2, 3, 4, 6, 12, 31, 41, 62, 82, 93, 123, 124, 164, 186, 246, 372, 492, 1271, 1297, 2542, 2594, 3813, 3891, 5084, 5188, 7626, 7782, 15252, 15564, 40207, 53177, 80414, 106354, 120621, 159531, 160828, 212708, 241242, 319062, 482484, 638124, 1648487, 3296974, 4945461, 6593948, 9890922, 19781844]

約数ペア:

[(1, 19781844), (2, 9890922), (3, 6593948), (4, 4945461), (6, 3296974), (12, 1648487), (31, 638124), (41, 482484), (62, 319062), (82, 241242), (93, 212708), (123, 160828), (124, 159531), (164, 120621), (186, 106354), (246, 80414), (372, 53177), (492, 40207), (1271, 15564), (1297, 15252), (2542, 7782), (2594, 7626), (3813, 5188), (3891, 5084)]