21111584

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2671}}^1$

素因数の和:2713

約数の個数: 48

約数和(自身を含む): 47134080

約数和(自身を除く): 26022496

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 76, 104, 152, 208, 247, 304, 416, 494, 608, 988, 1976, 2671, 3952, 5342, 7904, 10684, 21368, 34723, 42736, 50749, 69446, 85472, 101498, 138892, 202996, 277784, 405992, 555568, 659737, 811984, 1111136, 1319474, 1623968, 2638948, 5277896, 10555792, 21111584]

約数ペア:

[(1, 21111584), (2, 10555792), (4, 5277896), (8, 2638948), (13, 1623968), (16, 1319474), (19, 1111136), (26, 811984), (32, 659737), (38, 555568), (52, 405992), (76, 277784), (104, 202996), (152, 138892), (208, 101498), (247, 85472), (304, 69446), (416, 50749), (494, 42736), (608, 34723), (988, 21368), (1976, 10684), (2671, 7904), (3952, 5342)]