21891912

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{419}}^1$

素因数の和:746

約数の個数: 64

約数和(自身を含む): 62899200

約数和(自身を除く): 41007288

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 311, 419, 622, 838, 933, 1244, 1257, 1676, 1866, 2177, 2488, 2514, 2933, 3352, 3732, 4354, 5028, 5866, 6531, 7464, 8708, 8799, 10056, 11732, 13062, 17416, 17598, 23464, 26124, 35196, 52248, 70392, 130309, 260618, 390927, 521236, 781854, 912163, 1042472, 1563708, 1824326, 2736489, 3127416, 3648652, 5472978, 7297304, 10945956, 21891912]

約数ペア:

[(1, 21891912), (2, 10945956), (3, 7297304), (4, 5472978), (6, 3648652), (7, 3127416), (8, 2736489), (12, 1824326), (14, 1563708), (21, 1042472), (24, 912163), (28, 781854), (42, 521236), (56, 390927), (84, 260618), (168, 130309), (311, 70392), (419, 52248), (622, 35196), (838, 26124), (933, 23464), (1244, 17598), (1257, 17416), (1676, 13062), (1866, 11732), (2177, 10056), (2488, 8799), (2514, 8708), (2933, 7464), (3352, 6531), (3732, 5866), (4354, 5028)]