20805396

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{997}}^1$

素因数の和:1088

約数の個数: 48

約数和(自身を含む): 50969856

約数和(自身を除く): 30164460

約数列:

[1, 2, 3, 4, 6, 12, 37, 47, 74, 94, 111, 141, 148, 188, 222, 282, 444, 564, 997, 1739, 1994, 2991, 3478, 3988, 5217, 5982, 6956, 10434, 11964, 20868, 36889, 46859, 73778, 93718, 110667, 140577, 147556, 187436, 221334, 281154, 442668, 562308, 1733783, 3467566, 5201349, 6935132, 10402698, 20805396]

約数ペア:

[(1, 20805396), (2, 10402698), (3, 6935132), (4, 5201349), (6, 3467566), (12, 1733783), (37, 562308), (47, 442668), (74, 281154), (94, 221334), (111, 187436), (141, 147556), (148, 140577), (188, 110667), (222, 93718), (282, 73778), (444, 46859), (564, 36889), (997, 20868), (1739, 11964), (1994, 10434), (2991, 6956), (3478, 5982), (3988, 5217)]