21385280

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{9547}}^1$

素因数の和:9571

約数の個数: 56

約数和(自身を含む): 58204608

約数和(自身を除く): 36819328

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 9547, 19094, 38188, 47735, 66829, 76376, 95470, 133658, 152752, 190940, 267316, 305504, 334145, 381880, 534632, 611008, 668290, 763760, 1069264, 1336580, 1527520, 2138528, 2673160, 3055040, 4277056, 5346320, 10692640, 21385280]

約数ペア:

[(1, 21385280), (2, 10692640), (4, 5346320), (5, 4277056), (7, 3055040), (8, 2673160), (10, 2138528), (14, 1527520), (16, 1336580), (20, 1069264), (28, 763760), (32, 668290), (35, 611008), (40, 534632), (56, 381880), (64, 334145), (70, 305504), (80, 267316), (112, 190940), (140, 152752), (160, 133658), (224, 95470), (280, 76376), (320, 66829), (448, 47735), (560, 38188), (1120, 19094), (2240, 9547)]