21946180

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{631}}^1$

素因数の和:724

約数の個数: 48

約数和(自身を含む): 48416256

約数和(自身を除く): 26470076

約数列:

[1, 2, 4, 5, 10, 20, 37, 47, 74, 94, 148, 185, 188, 235, 370, 470, 631, 740, 940, 1262, 1739, 2524, 3155, 3478, 6310, 6956, 8695, 12620, 17390, 23347, 29657, 34780, 46694, 59314, 93388, 116735, 118628, 148285, 233470, 296570, 466940, 593140, 1097309, 2194618, 4389236, 5486545, 10973090, 21946180]

約数ペア:

[(1, 21946180), (2, 10973090), (4, 5486545), (5, 4389236), (10, 2194618), (20, 1097309), (37, 593140), (47, 466940), (74, 296570), (94, 233470), (148, 148285), (185, 118628), (188, 116735), (235, 93388), (370, 59314), (470, 46694), (631, 34780), (740, 29657), (940, 23347), (1262, 17390), (1739, 12620), (2524, 8695), (3155, 6956), (3478, 6310)]