21392488

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1$

素因数の和:262

約数の個数: 64

約数和(自身を含む): 46040400

約数和(自身を除く): 24647912

約数列:

[1, 2, 4, 8, 13, 26, 29, 41, 52, 58, 82, 104, 116, 164, 173, 232, 328, 346, 377, 533, 692, 754, 1066, 1189, 1384, 1508, 2132, 2249, 2378, 3016, 4264, 4498, 4756, 5017, 7093, 8996, 9512, 10034, 14186, 15457, 17992, 20068, 28372, 30914, 40136, 56744, 61828, 65221, 92209, 123656, 130442, 184418, 205697, 260884, 368836, 411394, 521768, 737672, 822788, 1645576, 2674061, 5348122, 10696244, 21392488]

約数ペア:

[(1, 21392488), (2, 10696244), (4, 5348122), (8, 2674061), (13, 1645576), (26, 822788), (29, 737672), (41, 521768), (52, 411394), (58, 368836), (82, 260884), (104, 205697), (116, 184418), (164, 130442), (173, 123656), (232, 92209), (328, 65221), (346, 61828), (377, 56744), (533, 40136), (692, 30914), (754, 28372), (1066, 20068), (1189, 17992), (1384, 15457), (1508, 14186), (2132, 10034), (2249, 9512), (2378, 8996), (3016, 7093), (4264, 5017), (4498, 4756)]