21277368

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{163}}^1$

素因数の和:226

約数の個数: 144

約数和(自身を含む): 69268680

約数和(自身を除く): 47991312

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 37, 42, 49, 56, 63, 72, 74, 84, 98, 111, 126, 147, 148, 163, 168, 196, 222, 252, 259, 294, 296, 326, 333, 392, 441, 444, 489, 504, 518, 588, 652, 666, 777, 882, 888, 978, 1036, 1141, 1176, 1304, 1332, 1467, 1554, 1764, 1813, 1956, 2072, 2282, 2331, 2664, 2934, 3108, 3423, 3528, 3626, 3912, 4564, 4662, 5439, 5868, 6031, 6216, 6846, 7252, 7987, 9128, 9324, 10269, 10878, 11736, 12062, 13692, 14504, 15974, 16317, 18093, 18648, 20538, 21756, 23961, 24124, 27384, 31948, 32634, 36186, 41076, 42217, 43512, 47922, 48248, 54279, 63896, 65268, 71883, 72372, 82152, 84434, 95844, 108558, 126651, 130536, 143766, 144744, 168868, 191688, 217116, 253302, 287532, 295519, 337736, 379953, 434232, 506604, 575064, 591038, 759906, 886557, 1013208, 1182076, 1519812, 1773114, 2364152, 2659671, 3039624, 3546228, 5319342, 7092456, 10638684, 21277368]

約数ペア:

[(1, 21277368), (2, 10638684), (3, 7092456), (4, 5319342), (6, 3546228), (7, 3039624), (8, 2659671), (9, 2364152), (12, 1773114), (14, 1519812), (18, 1182076), (21, 1013208), (24, 886557), (28, 759906), (36, 591038), (37, 575064), (42, 506604), (49, 434232), (56, 379953), (63, 337736), (72, 295519), (74, 287532), (84, 253302), (98, 217116), (111, 191688), (126, 168868), (147, 144744), (148, 143766), (163, 130536), (168, 126651), (196, 108558), (222, 95844), (252, 84434), (259, 82152), (294, 72372), (296, 71883), (326, 65268), (333, 63896), (392, 54279), (441, 48248), (444, 47922), (489, 43512), (504, 42217), (518, 41076), (588, 36186), (652, 32634), (666, 31948), (777, 27384), (882, 24124), (888, 23961), (978, 21756), (1036, 20538), (1141, 18648), (1176, 18093), (1304, 16317), (1332, 15974), (1467, 14504), (1554, 13692), (1764, 12062), (1813, 11736), (1956, 10878), (2072, 10269), (2282, 9324), (2331, 9128), (2664, 7987), (2934, 7252), (3108, 6846), (3423, 6216), (3528, 6031), (3626, 5868), (3912, 5439), (4564, 4662)]