21567312

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{281}}^1$

素因数の和:349

約数の個数: 120

約数和(自身を含む): 66823848

約数和(自身を除く): 45256536

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 41, 48, 52, 72, 78, 82, 104, 117, 123, 144, 156, 164, 208, 234, 246, 281, 312, 328, 369, 468, 492, 533, 562, 624, 656, 738, 843, 936, 984, 1066, 1124, 1476, 1599, 1686, 1872, 1968, 2132, 2248, 2529, 2952, 3198, 3372, 3653, 4264, 4496, 4797, 5058, 5904, 6396, 6744, 7306, 8528, 9594, 10116, 10959, 11521, 12792, 13488, 14612, 19188, 20232, 21918, 23042, 25584, 29224, 32877, 34563, 38376, 40464, 43836, 46084, 58448, 65754, 69126, 76752, 87672, 92168, 103689, 131508, 138252, 149773, 175344, 184336, 207378, 263016, 276504, 299546, 414756, 449319, 526032, 553008, 599092, 829512, 898638, 1198184, 1347957, 1659024, 1797276, 2396368, 2695914, 3594552, 5391828, 7189104, 10783656, 21567312]

約数ペア:

[(1, 21567312), (2, 10783656), (3, 7189104), (4, 5391828), (6, 3594552), (8, 2695914), (9, 2396368), (12, 1797276), (13, 1659024), (16, 1347957), (18, 1198184), (24, 898638), (26, 829512), (36, 599092), (39, 553008), (41, 526032), (48, 449319), (52, 414756), (72, 299546), (78, 276504), (82, 263016), (104, 207378), (117, 184336), (123, 175344), (144, 149773), (156, 138252), (164, 131508), (208, 103689), (234, 92168), (246, 87672), (281, 76752), (312, 69126), (328, 65754), (369, 58448), (468, 46084), (492, 43836), (533, 40464), (562, 38376), (624, 34563), (656, 32877), (738, 29224), (843, 25584), (936, 23042), (984, 21918), (1066, 20232), (1124, 19188), (1476, 14612), (1599, 13488), (1686, 12792), (1872, 11521), (1968, 10959), (2132, 10116), (2248, 9594), (2529, 8528), (2952, 7306), (3198, 6744), (3372, 6396), (3653, 5904), (4264, 5058), (4496, 4797)]