28111251

素因数分解:

$3^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{1607}}^1$

素因数の和:1648

約数の個数: 32

約数和(自身を含む): 46310400

約数和(自身を除く): 18199149

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 343, 357, 833, 1029, 1607, 2499, 4821, 5831, 11249, 17493, 27319, 33747, 78743, 81957, 191233, 236229, 551201, 573699, 1338631, 1653603, 4015893, 9370417, 28111251]

約数ペア:

[(1, 28111251), (3, 9370417), (7, 4015893), (17, 1653603), (21, 1338631), (49, 573699), (51, 551201), (119, 236229), (147, 191233), (343, 81957), (357, 78743), (833, 33747), (1029, 27319), (1607, 17493), (2499, 11249), (4821, 5831)]