9905895

素因数分解:

$3^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 18450432

約数和(自身を除く): 8544537

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 81, 93, 135, 155, 243, 263, 279, 405, 465, 789, 837, 1215, 1315, 1395, 2367, 2511, 3945, 4185, 7101, 7533, 8153, 11835, 12555, 21303, 24459, 35505, 37665, 40765, 63909, 73377, 106515, 122295, 220131, 319545, 366885, 660393, 1100655, 1981179, 3301965, 9905895]

約数ペア:

[(1, 9905895), (3, 3301965), (5, 1981179), (9, 1100655), (15, 660393), (27, 366885), (31, 319545), (45, 220131), (81, 122295), (93, 106515), (135, 73377), (155, 63909), (243, 40765), (263, 37665), (279, 35505), (405, 24459), (465, 21303), (789, 12555), (837, 11835), (1215, 8153), (1315, 7533), (1395, 7101), (2367, 4185), (2511, 3945)]