21699760

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{7331}}^1$

素因数の和:7381

約数の個数: 40

約数和(自身を含む): 51822576

約数和(自身を除く): 30122816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 7331, 14662, 29324, 36655, 58648, 73310, 117296, 146620, 271247, 293240, 542494, 586480, 1084988, 1356235, 2169976, 2712470, 4339952, 5424940, 10849880, 21699760]

約数ペア:

[(1, 21699760), (2, 10849880), (4, 5424940), (5, 4339952), (8, 2712470), (10, 2169976), (16, 1356235), (20, 1084988), (37, 586480), (40, 542494), (74, 293240), (80, 271247), (148, 146620), (185, 117296), (296, 73310), (370, 58648), (592, 36655), (740, 29324), (1480, 14662), (2960, 7331)]