28631631

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 47044608

約数和(自身を除く): 18412977

約数列:

[1, 3, 7, 21, 31, 49, 61, 93, 103, 147, 183, 217, 309, 427, 651, 721, 1281, 1519, 1891, 2163, 2989, 3193, 4557, 5047, 5673, 6283, 8967, 9579, 13237, 15141, 18849, 22351, 39711, 43981, 67053, 92659, 131943, 156457, 194773, 277977, 307867, 469371, 584319, 923601, 1363411, 4090233, 9543877, 28631631]

約数ペア:

[(1, 28631631), (3, 9543877), (7, 4090233), (21, 1363411), (31, 923601), (49, 584319), (61, 469371), (93, 307867), (103, 277977), (147, 194773), (183, 156457), (217, 131943), (309, 92659), (427, 67053), (651, 43981), (721, 39711), (1281, 22351), (1519, 18849), (1891, 15141), (2163, 13237), (2989, 9579), (3193, 8967), (4557, 6283), (5047, 5673)]