21468754940

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{617273}}^1$

素因数の和:617366

約数の個数: 48

約数和(自身を含む): 47288126592

約数和(自身を除く): 25819371652

約数列:

[1, 2, 4, 5, 10, 20, 37, 47, 74, 94, 148, 185, 188, 235, 370, 470, 740, 940, 1739, 3478, 6956, 8695, 17390, 34780, 617273, 1234546, 2469092, 3086365, 6172730, 12345460, 22839101, 29011831, 45678202, 58023662, 91356404, 114195505, 116047324, 145059155, 228391010, 290118310, 456782020, 580236620, 1073437747, 2146875494, 4293750988, 5367188735, 10734377470, 21468754940]

約数ペア:

[(1, 21468754940), (2, 10734377470), (4, 5367188735), (5, 4293750988), (10, 2146875494), (20, 1073437747), (37, 580236620), (47, 456782020), (74, 290118310), (94, 228391010), (148, 145059155), (185, 116047324), (188, 114195505), (235, 91356404), (370, 58023662), (470, 45678202), (740, 29011831), (940, 22839101), (1739, 12345460), (3478, 6172730), (6956, 3086365), (8695, 2469092), (17390, 1234546), (34780, 617273)]