21126648

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{977}}^1$

素因数の和:1056

約数の個数: 64

約数和(自身を含む): 57036960

約数和(自身を除く): 35910312

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 53, 68, 102, 106, 136, 159, 204, 212, 318, 408, 424, 636, 901, 977, 1272, 1802, 1954, 2703, 2931, 3604, 3908, 5406, 5862, 7208, 7816, 10812, 11724, 16609, 21624, 23448, 33218, 49827, 51781, 66436, 99654, 103562, 132872, 155343, 199308, 207124, 310686, 398616, 414248, 621372, 880277, 1242744, 1760554, 2640831, 3521108, 5281662, 7042216, 10563324, 21126648]

約数ペア:

[(1, 21126648), (2, 10563324), (3, 7042216), (4, 5281662), (6, 3521108), (8, 2640831), (12, 1760554), (17, 1242744), (24, 880277), (34, 621372), (51, 414248), (53, 398616), (68, 310686), (102, 207124), (106, 199308), (136, 155343), (159, 132872), (204, 103562), (212, 99654), (318, 66436), (408, 51781), (424, 49827), (636, 33218), (901, 23448), (977, 21624), (1272, 16609), (1802, 11724), (1954, 10812), (2703, 7816), (2931, 7208), (3604, 5862), (3908, 5406)]