19748968

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{145213}}^1$

素因数の和:145236

約数の個数: 16

約数和(自身を含む): 39207780

約数和(自身を除く): 19458812

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 145213, 290426, 580852, 1161704, 2468621, 4937242, 9874484, 19748968]

約数ペア:

[(1, 19748968), (2, 9874484), (4, 4937242), (8, 2468621), (17, 1161704), (34, 580852), (68, 290426), (136, 145213)]