21876904

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{709}}^1$

素因数の和:770

約数の個数: 64

約数和(自身を含む): 51120000

約数和(自身を除く): 29243096

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 29, 38, 56, 58, 76, 116, 133, 152, 203, 232, 266, 406, 532, 551, 709, 812, 1064, 1102, 1418, 1624, 2204, 2836, 3857, 4408, 4963, 5672, 7714, 9926, 13471, 15428, 19852, 20561, 26942, 30856, 39704, 41122, 53884, 82244, 94297, 107768, 143927, 164488, 188594, 287854, 377188, 390659, 575708, 754376, 781318, 1151416, 1562636, 2734613, 3125272, 5469226, 10938452, 21876904]

約数ペア:

[(1, 21876904), (2, 10938452), (4, 5469226), (7, 3125272), (8, 2734613), (14, 1562636), (19, 1151416), (28, 781318), (29, 754376), (38, 575708), (56, 390659), (58, 377188), (76, 287854), (116, 188594), (133, 164488), (152, 143927), (203, 107768), (232, 94297), (266, 82244), (406, 53884), (532, 41122), (551, 39704), (709, 30856), (812, 26942), (1064, 20561), (1102, 19852), (1418, 15428), (1624, 13471), (2204, 9926), (2836, 7714), (3857, 5672), (4408, 4963)]