21753040

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{7349}}^1$

素因数の和:7399

約数の個数: 40

約数和(自身を含む): 51949800

約数和(自身を除く): 30196760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 7349, 14698, 29396, 36745, 58792, 73490, 117584, 146980, 271913, 293960, 543826, 587920, 1087652, 1359565, 2175304, 2719130, 4350608, 5438260, 10876520, 21753040]

約数ペア:

[(1, 21753040), (2, 10876520), (4, 5438260), (5, 4350608), (8, 2719130), (10, 2175304), (16, 1359565), (20, 1087652), (37, 587920), (40, 543826), (74, 293960), (80, 271913), (148, 146980), (185, 117584), (296, 73490), (370, 58792), (592, 36745), (740, 29396), (1480, 14698), (2960, 7349)]