18974015

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{751}}^1$

素因数の和:950

約数の個数: 16

約数和(自身を含む): 23678976

約数和(自身を除く): 4704961

約数列:

[1, 5, 31, 155, 163, 751, 815, 3755, 5053, 23281, 25265, 116405, 122413, 612065, 3794803, 18974015]

約数ペア:

[(1, 18974015), (5, 3794803), (31, 612065), (155, 122413), (163, 116405), (751, 25265), (815, 23281), (3755, 5053)]