18563139

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^2\times {\mathrm{557}}^1$

素因数の和:616

約数の個数: 36

約数和(自身を含む): 32091696

約数和(自身を除く): 13528557

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 529, 557, 1449, 1587, 1671, 3703, 3899, 4761, 5013, 11109, 11697, 12811, 33327, 35091, 38433, 89677, 115299, 269031, 294653, 807093, 883959, 2062571, 2651877, 6187713, 18563139]

約数ペア:

[(1, 18563139), (3, 6187713), (7, 2651877), (9, 2062571), (21, 883959), (23, 807093), (63, 294653), (69, 269031), (161, 115299), (207, 89677), (483, 38433), (529, 35091), (557, 33327), (1449, 12811), (1587, 11697), (1671, 11109), (3703, 5013), (3899, 4761)]