21842416

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{613}}^1$

素因数の和:769

約数の個数: 40

約数和(自身を含む): 45224784

約数和(自身を除く): 23382368

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 131, 136, 262, 272, 524, 613, 1048, 1226, 2096, 2227, 2452, 4454, 4904, 8908, 9808, 10421, 17816, 20842, 35632, 41684, 80303, 83368, 160606, 166736, 321212, 642424, 1284848, 1365151, 2730302, 5460604, 10921208, 21842416]

約数ペア:

[(1, 21842416), (2, 10921208), (4, 5460604), (8, 2730302), (16, 1365151), (17, 1284848), (34, 642424), (68, 321212), (131, 166736), (136, 160606), (262, 83368), (272, 80303), (524, 41684), (613, 35632), (1048, 20842), (1226, 17816), (2096, 10421), (2227, 9808), (2452, 8908), (4454, 4904)]