21475660

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{607}}^1$

素因数の和:706

約数の個数: 48

約数和(自身を含む): 47496960

約数和(自身を除く): 26021300

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 61, 116, 122, 145, 244, 290, 305, 580, 607, 610, 1214, 1220, 1769, 2428, 3035, 3538, 6070, 7076, 8845, 12140, 17603, 17690, 35206, 35380, 37027, 70412, 74054, 88015, 148108, 176030, 185135, 352060, 370270, 740540, 1073783, 2147566, 4295132, 5368915, 10737830, 21475660]

約数ペア:

[(1, 21475660), (2, 10737830), (4, 5368915), (5, 4295132), (10, 2147566), (20, 1073783), (29, 740540), (58, 370270), (61, 352060), (116, 185135), (122, 176030), (145, 148108), (244, 88015), (290, 74054), (305, 70412), (580, 37027), (607, 35380), (610, 35206), (1214, 17690), (1220, 17603), (1769, 12140), (2428, 8845), (3035, 7076), (3538, 6070)]