30991221

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{269}}^1$

素因数の和:546

約数の個数: 32

約数和(自身を含む): 48988800

約数和(自身を除く): 17997579

約数列:

[1, 3, 9, 17, 27, 51, 153, 251, 269, 459, 753, 807, 2259, 2421, 4267, 4573, 6777, 7263, 12801, 13719, 38403, 41157, 67519, 115209, 123471, 202557, 607671, 1147823, 1823013, 3443469, 10330407, 30991221]

約数ペア:

[(1, 30991221), (3, 10330407), (9, 3443469), (17, 1823013), (27, 1147823), (51, 607671), (153, 202557), (251, 123471), (269, 115209), (459, 67519), (753, 41157), (807, 38403), (2259, 13719), (2421, 12801), (4267, 7263), (4573, 6777)]