21907040

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5953}}^1$

素因数の和:5991

約数の個数: 48

約数和(自身を含む): 54014688

約数和(自身を除く): 32107648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 736, 920, 1840, 3680, 5953, 11906, 23812, 29765, 47624, 59530, 95248, 119060, 136919, 190496, 238120, 273838, 476240, 547676, 684595, 952480, 1095352, 1369190, 2190704, 2738380, 4381408, 5476760, 10953520, 21907040]

約数ペア:

[(1, 21907040), (2, 10953520), (4, 5476760), (5, 4381408), (8, 2738380), (10, 2190704), (16, 1369190), (20, 1095352), (23, 952480), (32, 684595), (40, 547676), (46, 476240), (80, 273838), (92, 238120), (115, 190496), (160, 136919), (184, 119060), (230, 95248), (368, 59530), (460, 47624), (736, 29765), (920, 23812), (1840, 11906), (3680, 5953)]