18664012

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{509}}^1$

素因数の和:705

約数の個数: 24

約数和(自身を含む): 33415200

約数和(自身を除く): 14751188

約数列:

[1, 2, 4, 89, 103, 178, 206, 356, 412, 509, 1018, 2036, 9167, 18334, 36668, 45301, 52427, 90602, 104854, 181204, 209708, 4666003, 9332006, 18664012]

約数ペア:

[(1, 18664012), (2, 9332006), (4, 4666003), (89, 209708), (103, 181204), (178, 104854), (206, 90602), (356, 52427), (412, 45301), (509, 36668), (1018, 18334), (2036, 9167)]