21565650

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{109}}^1\times {\mathrm{1319}}^1$

素因数の和:1443

約数の個数: 48

約数和(自身を含む): 54014400

約数和(自身を除く): 32448750

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 109, 150, 218, 327, 545, 654, 1090, 1319, 1635, 2638, 2725, 3270, 3957, 5450, 6595, 7914, 8175, 13190, 16350, 19785, 32975, 39570, 65950, 98925, 143771, 197850, 287542, 431313, 718855, 862626, 1437710, 2156565, 3594275, 4313130, 7188550, 10782825, 21565650]

約数ペア:

[(1, 21565650), (2, 10782825), (3, 7188550), (5, 4313130), (6, 3594275), (10, 2156565), (15, 1437710), (25, 862626), (30, 718855), (50, 431313), (75, 287542), (109, 197850), (150, 143771), (218, 98925), (327, 65950), (545, 39570), (654, 32975), (1090, 19785), (1319, 16350), (1635, 13190), (2638, 8175), (2725, 7914), (3270, 6595), (3957, 5450)]