21358935

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1259}}^1$

素因数の和:1312

約数の個数: 48

約数和(自身を含む): 41277600

約数和(自身を除く): 19918665

約数列:

[1, 3, 5, 9, 13, 15, 29, 39, 45, 65, 87, 117, 145, 195, 261, 377, 435, 585, 1131, 1259, 1305, 1885, 3393, 3777, 5655, 6295, 11331, 16367, 16965, 18885, 36511, 49101, 56655, 81835, 109533, 147303, 182555, 245505, 328599, 474643, 547665, 736515, 1423929, 1642995, 2373215, 4271787, 7119645, 21358935]

約数ペア:

[(1, 21358935), (3, 7119645), (5, 4271787), (9, 2373215), (13, 1642995), (15, 1423929), (29, 736515), (39, 547665), (45, 474643), (65, 328599), (87, 245505), (117, 182555), (145, 147303), (195, 109533), (261, 81835), (377, 56655), (435, 49101), (585, 36511), (1131, 18885), (1259, 16965), (1305, 16367), (1885, 11331), (3393, 6295), (3777, 5655)]