21546580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2647}}^1$

素因数の和:2704

約数の個数: 48

約数和(自身を含む): 50714496

約数和(自身を除く): 29167916

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1628, 2035, 2647, 4070, 5294, 8140, 10588, 13235, 26470, 29117, 52940, 58234, 97939, 116468, 145585, 195878, 291170, 391756, 489695, 582340, 979390, 1077329, 1958780, 2154658, 4309316, 5386645, 10773290, 21546580]

約数ペア:

[(1, 21546580), (2, 10773290), (4, 5386645), (5, 4309316), (10, 2154658), (11, 1958780), (20, 1077329), (22, 979390), (37, 582340), (44, 489695), (55, 391756), (74, 291170), (110, 195878), (148, 145585), (185, 116468), (220, 97939), (370, 58234), (407, 52940), (740, 29117), (814, 26470), (1628, 13235), (2035, 10588), (2647, 8140), (4070, 5294)]