25557273

素因数分解:

$3^2\times 7^3\times {\mathrm{17}}^1\times {\mathrm{487}}^1$

素因数の和:531

約数の個数: 48

約数和(自身を含む): 45676800

約数和(自身を除く): 20119527

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 63, 119, 147, 153, 343, 357, 441, 487, 833, 1029, 1071, 1461, 2499, 3087, 3409, 4383, 5831, 7497, 8279, 10227, 17493, 23863, 24837, 30681, 52479, 57953, 71589, 74511, 167041, 173859, 214767, 405671, 501123, 521577, 1217013, 1503369, 2839697, 3651039, 8519091, 25557273]

約数ペア:

[(1, 25557273), (3, 8519091), (7, 3651039), (9, 2839697), (17, 1503369), (21, 1217013), (49, 521577), (51, 501123), (63, 405671), (119, 214767), (147, 173859), (153, 167041), (343, 74511), (357, 71589), (441, 57953), (487, 52479), (833, 30681), (1029, 24837), (1071, 23863), (1461, 17493), (2499, 10227), (3087, 8279), (3409, 7497), (4383, 5831)]