18687184

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{61471}}^1$

素因数の和:61498

約数の個数: 20

約数和(自身を含む): 38112640

約数和(自身を除く): 19425456

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 61471, 122942, 245884, 491768, 983536, 1167949, 2335898, 4671796, 9343592, 18687184]

約数ペア:

[(1, 18687184), (2, 9343592), (4, 4671796), (8, 2335898), (16, 1167949), (19, 983536), (38, 491768), (76, 245884), (152, 122942), (304, 61471)]