21581296

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{7213}}^1$

素因数の和:7249

約数の個数: 40

約数和(自身を含む): 48304944

約数和(自身を除く): 26723648

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 136, 176, 187, 272, 374, 748, 1496, 2992, 7213, 14426, 28852, 57704, 79343, 115408, 122621, 158686, 245242, 317372, 490484, 634744, 980968, 1269488, 1348831, 1961936, 2697662, 5395324, 10790648, 21581296]

約数ペア:

[(1, 21581296), (2, 10790648), (4, 5395324), (8, 2697662), (11, 1961936), (16, 1348831), (17, 1269488), (22, 980968), (34, 634744), (44, 490484), (68, 317372), (88, 245242), (136, 158686), (176, 122621), (187, 115408), (272, 79343), (374, 57704), (748, 28852), (1496, 14426), (2992, 7213)]