21221474

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:298

約数の個数: 32

約数和(自身を含む): 34992000

約数和(自身を除く): 13770526

約数列:

[1, 2, 17, 34, 59, 71, 118, 142, 149, 298, 1003, 1207, 2006, 2414, 2533, 4189, 5066, 8378, 8791, 10579, 17582, 21158, 71213, 142426, 149447, 179843, 298894, 359686, 624161, 1248322, 10610737, 21221474]

約数ペア:

[(1, 21221474), (2, 10610737), (17, 1248322), (34, 624161), (59, 359686), (71, 298894), (118, 179843), (142, 149447), (149, 142426), (298, 71213), (1003, 21158), (1207, 17582), (2006, 10579), (2414, 8791), (2533, 8378), (4189, 5066)]