278317197

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{3229}}^1$

素因数の和:3453

約数の個数: 24

約数和(自身を含む): 411334040

約数和(自身を除く): 133016843

約数列:

[1, 3, 9, 61, 157, 183, 471, 549, 1413, 3229, 9577, 9687, 28731, 29061, 86193, 196969, 506953, 590907, 1520859, 1772721, 4562577, 30924133, 92772399, 278317197]

約数ペア:

[(1, 278317197), (3, 92772399), (9, 30924133), (61, 4562577), (157, 1772721), (183, 1520859), (471, 590907), (549, 506953), (1413, 196969), (3229, 86193), (9577, 29061), (9687, 28731)]