20878158

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{21613}}^1$

素因数の和:21648

約数の個数: 32

約数和(自身を含む): 49798656

約数和(自身を除く): 28920498

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 69, 138, 161, 322, 483, 966, 21613, 43226, 64839, 129678, 151291, 302582, 453873, 497099, 907746, 994198, 1491297, 2982594, 3479693, 6959386, 10439079, 20878158]

約数ペア:

[(1, 20878158), (2, 10439079), (3, 6959386), (6, 3479693), (7, 2982594), (14, 1491297), (21, 994198), (23, 907746), (42, 497099), (46, 453873), (69, 302582), (138, 151291), (161, 129678), (322, 64839), (483, 43226), (966, 21613)]