28507323

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:339

約数の個数: 32

約数和(自身を含む): 42577920

約数和(自身を除く): 14070597

約数列:

[1, 3, 13, 39, 43, 89, 129, 191, 267, 559, 573, 1157, 1677, 2483, 3471, 3827, 7449, 8213, 11481, 16999, 24639, 49751, 50997, 106769, 149253, 220987, 320307, 662961, 730957, 2192871, 9502441, 28507323]

約数ペア:

[(1, 28507323), (3, 9502441), (13, 2192871), (39, 730957), (43, 662961), (89, 320307), (129, 220987), (191, 149253), (267, 106769), (559, 50997), (573, 49751), (1157, 24639), (1677, 16999), (2483, 11481), (3471, 8213), (3827, 7449)]