21664370

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1$

素因数の和:232

約数の個数: 96

約数和(自身を含む): 51710400

約数和(自身を除く): 30046030

約数列:

[1, 2, 5, 7, 10, 13, 14, 19, 26, 35, 38, 49, 65, 70, 91, 95, 98, 130, 133, 179, 182, 190, 245, 247, 266, 358, 455, 490, 494, 637, 665, 895, 910, 931, 1235, 1253, 1274, 1330, 1729, 1790, 1862, 2327, 2470, 2506, 3185, 3401, 3458, 4654, 4655, 6265, 6370, 6802, 8645, 8771, 9310, 11635, 12103, 12530, 16289, 17005, 17290, 17542, 23270, 23807, 24206, 32578, 34010, 43855, 44213, 47614, 60515, 81445, 87710, 88426, 114023, 119035, 121030, 162890, 166649, 221065, 228046, 238070, 309491, 333298, 442130, 570115, 618982, 833245, 1140230, 1547455, 1666490, 2166437, 3094910, 4332874, 10832185, 21664370]

約数ペア:

[(1, 21664370), (2, 10832185), (5, 4332874), (7, 3094910), (10, 2166437), (13, 1666490), (14, 1547455), (19, 1140230), (26, 833245), (35, 618982), (38, 570115), (49, 442130), (65, 333298), (70, 309491), (91, 238070), (95, 228046), (98, 221065), (130, 166649), (133, 162890), (179, 121030), (182, 119035), (190, 114023), (245, 88426), (247, 87710), (266, 81445), (358, 60515), (455, 47614), (490, 44213), (494, 43855), (637, 34010), (665, 32578), (895, 24206), (910, 23807), (931, 23270), (1235, 17542), (1253, 17290), (1274, 17005), (1330, 16289), (1729, 12530), (1790, 12103), (1862, 11635), (2327, 9310), (2470, 8771), (2506, 8645), (3185, 6802), (3401, 6370), (3458, 6265), (4654, 4655)]