21257016

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1103}}^1$

素因数の和:1196

約数の個数: 64

約数和(自身を含む): 58821120

約数和(自身を除く): 37564104

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 73, 88, 132, 146, 219, 264, 292, 438, 584, 803, 876, 1103, 1606, 1752, 2206, 2409, 3212, 3309, 4412, 4818, 6424, 6618, 8824, 9636, 12133, 13236, 19272, 24266, 26472, 36399, 48532, 72798, 80519, 97064, 145596, 161038, 241557, 291192, 322076, 483114, 644152, 885709, 966228, 1771418, 1932456, 2657127, 3542836, 5314254, 7085672, 10628508, 21257016]

約数ペア:

[(1, 21257016), (2, 10628508), (3, 7085672), (4, 5314254), (6, 3542836), (8, 2657127), (11, 1932456), (12, 1771418), (22, 966228), (24, 885709), (33, 644152), (44, 483114), (66, 322076), (73, 291192), (88, 241557), (132, 161038), (146, 145596), (219, 97064), (264, 80519), (292, 72798), (438, 48532), (584, 36399), (803, 26472), (876, 24266), (1103, 19272), (1606, 13236), (1752, 12133), (2206, 9636), (2409, 8824), (3212, 6618), (3309, 6424), (4412, 4818)]