21289944

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{181}}^1$

素因数の和:245

約数の個数: 96

約数和(自身を含む): 59950800

約数和(自身を除く): 38660856

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 29, 39, 52, 58, 78, 87, 104, 116, 156, 169, 174, 181, 232, 312, 338, 348, 362, 377, 507, 543, 676, 696, 724, 754, 1014, 1086, 1131, 1352, 1448, 1508, 2028, 2172, 2262, 2353, 3016, 4056, 4344, 4524, 4706, 4901, 5249, 7059, 9048, 9412, 9802, 10498, 14118, 14703, 15747, 18824, 19604, 20996, 28236, 29406, 30589, 31494, 39208, 41992, 56472, 58812, 61178, 62988, 68237, 91767, 117624, 122356, 125976, 136474, 183534, 204711, 244712, 272948, 367068, 409422, 545896, 734136, 818844, 887081, 1637688, 1774162, 2661243, 3548324, 5322486, 7096648, 10644972, 21289944]

約数ペア:

[(1, 21289944), (2, 10644972), (3, 7096648), (4, 5322486), (6, 3548324), (8, 2661243), (12, 1774162), (13, 1637688), (24, 887081), (26, 818844), (29, 734136), (39, 545896), (52, 409422), (58, 367068), (78, 272948), (87, 244712), (104, 204711), (116, 183534), (156, 136474), (169, 125976), (174, 122356), (181, 117624), (232, 91767), (312, 68237), (338, 62988), (348, 61178), (362, 58812), (377, 56472), (507, 41992), (543, 39208), (676, 31494), (696, 30589), (724, 29406), (754, 28236), (1014, 20996), (1086, 19604), (1131, 18824), (1352, 15747), (1448, 14703), (1508, 14118), (2028, 10498), (2172, 9802), (2262, 9412), (2353, 9048), (3016, 7059), (4056, 5249), (4344, 4901), (4524, 4706)]