168939981

素因数分解:

$3^2\times 7^1\times {\mathrm{521}}^1\times {\mathrm{5147}}^1$

素因数の和:5681

約数の個数: 24

約数和(自身を含む): 279474624

約数和(自身を除く): 110534643

約数列:

[1, 3, 7, 9, 21, 63, 521, 1563, 3647, 4689, 5147, 10941, 15441, 32823, 36029, 46323, 108087, 324261, 2681587, 8044761, 18771109, 24134283, 56313327, 168939981]

約数ペア:

[(1, 168939981), (3, 56313327), (7, 24134283), (9, 18771109), (21, 8044761), (63, 2681587), (521, 324261), (1563, 108087), (3647, 46323), (4689, 36029), (5147, 32823), (10941, 15441)]