21450107

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:275

約数の個数: 32

約数和(自身を含む): 27993600

約数和(自身を除く): 6543493

約数列:

[1, 7, 17, 19, 53, 119, 133, 179, 323, 371, 901, 1007, 1253, 2261, 3043, 3401, 6307, 7049, 9487, 17119, 21301, 23807, 57817, 66409, 119833, 161279, 180253, 404719, 1128953, 1261771, 3064301, 21450107]

約数ペア:

[(1, 21450107), (7, 3064301), (17, 1261771), (19, 1128953), (53, 404719), (119, 180253), (133, 161279), (179, 119833), (323, 66409), (371, 57817), (901, 23807), (1007, 21301), (1253, 17119), (2261, 9487), (3043, 7049), (3401, 6307)]