21348292

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{431}}^1$

素因数の和:532

約数の個数: 48

約数和(自身を含む): 44997120

約数和(自身を除く): 23648828

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 61, 116, 122, 203, 244, 406, 427, 431, 812, 854, 862, 1708, 1724, 1769, 3017, 3538, 6034, 7076, 12068, 12383, 12499, 24766, 24998, 26291, 49532, 49996, 52582, 87493, 105164, 174986, 184037, 349972, 368074, 736148, 762439, 1524878, 3049756, 5337073, 10674146, 21348292]

約数ペア:

[(1, 21348292), (2, 10674146), (4, 5337073), (7, 3049756), (14, 1524878), (28, 762439), (29, 736148), (58, 368074), (61, 349972), (116, 184037), (122, 174986), (203, 105164), (244, 87493), (406, 52582), (427, 49996), (431, 49532), (812, 26291), (854, 24998), (862, 24766), (1708, 12499), (1724, 12383), (1769, 12068), (3017, 7076), (3538, 6034)]