21271224

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{863}}^1$

素因数の和:964

約数の個数: 64

約数和(自身を含む): 58060800

約数和(自身を除く): 36789576

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 79, 104, 156, 158, 237, 312, 316, 474, 632, 863, 948, 1027, 1726, 1896, 2054, 2589, 3081, 3452, 4108, 5178, 6162, 6904, 8216, 10356, 11219, 12324, 20712, 22438, 24648, 33657, 44876, 67314, 68177, 89752, 134628, 136354, 204531, 269256, 272708, 409062, 545416, 818124, 886301, 1636248, 1772602, 2658903, 3545204, 5317806, 7090408, 10635612, 21271224]

約数ペア:

[(1, 21271224), (2, 10635612), (3, 7090408), (4, 5317806), (6, 3545204), (8, 2658903), (12, 1772602), (13, 1636248), (24, 886301), (26, 818124), (39, 545416), (52, 409062), (78, 272708), (79, 269256), (104, 204531), (156, 136354), (158, 134628), (237, 89752), (312, 68177), (316, 67314), (474, 44876), (632, 33657), (863, 24648), (948, 22438), (1027, 20712), (1726, 12324), (1896, 11219), (2054, 10356), (2589, 8216), (3081, 6904), (3452, 6162), (4108, 5178)]