21742422

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{863}}^1$

素因数の和:917

約数の個数: 64

約数和(自身を含む): 52254720

約数和(自身を除く): 30512298

約数列:

[1, 2, 3, 6, 13, 17, 19, 26, 34, 38, 39, 51, 57, 78, 102, 114, 221, 247, 323, 442, 494, 646, 663, 741, 863, 969, 1326, 1482, 1726, 1938, 2589, 4199, 5178, 8398, 11219, 12597, 14671, 16397, 22438, 25194, 29342, 32794, 33657, 44013, 49191, 67314, 88026, 98382, 190723, 213161, 278749, 381446, 426322, 557498, 572169, 639483, 836247, 1144338, 1278966, 1672494, 3623737, 7247474, 10871211, 21742422]

約数ペア:

[(1, 21742422), (2, 10871211), (3, 7247474), (6, 3623737), (13, 1672494), (17, 1278966), (19, 1144338), (26, 836247), (34, 639483), (38, 572169), (39, 557498), (51, 426322), (57, 381446), (78, 278749), (102, 213161), (114, 190723), (221, 98382), (247, 88026), (323, 67314), (442, 49191), (494, 44013), (646, 33657), (663, 32794), (741, 29342), (863, 25194), (969, 22438), (1326, 16397), (1482, 14671), (1726, 12597), (1938, 11219), (2589, 8398), (4199, 5178)]