218616909

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{263}}^1\times {\mathrm{1721}}^1$

素因数の和:2017

約数の個数: 32

約数和(自身を含む): 349138944

約数和(自身を除く): 130522035

約数列:

[1, 3, 7, 21, 23, 69, 161, 263, 483, 789, 1721, 1841, 5163, 5523, 6049, 12047, 18147, 36141, 39583, 42343, 118749, 127029, 277081, 452623, 831243, 1357869, 3168361, 9505083, 10410329, 31230987, 72872303, 218616909]

約数ペア:

[(1, 218616909), (3, 72872303), (7, 31230987), (21, 10410329), (23, 9505083), (69, 3168361), (161, 1357869), (263, 831243), (483, 452623), (789, 277081), (1721, 127029), (1841, 118749), (5163, 42343), (5523, 39583), (6049, 36141), (12047, 18147)]