19640803408

素因数分解:

$2^4\times {\mathrm{2473}}^1\times {\mathrm{496381}}^1$

素因数の和:498862

約数の個数: 20

約数和(自身を含む): 38069521108

約数和(自身を除く): 18428717700

約数列:

[1, 2, 4, 8, 16, 2473, 4946, 9892, 19784, 39568, 496381, 992762, 1985524, 3971048, 7942096, 1227550213, 2455100426, 4910200852, 9820401704, 19640803408]

約数ペア:

[(1, 19640803408), (2, 9820401704), (4, 4910200852), (8, 2455100426), (16, 1227550213), (2473, 7942096), (4946, 3971048), (9892, 1985524), (19784, 992762), (39568, 496381)]