18494505

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{223}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 34245120

約数和(自身を除く): 15750615

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 97, 171, 223, 285, 291, 485, 669, 855, 873, 1115, 1455, 1843, 2007, 3345, 4237, 4365, 5529, 9215, 10035, 12711, 16587, 21185, 21631, 27645, 38133, 63555, 64893, 82935, 108155, 190665, 194679, 324465, 410989, 973395, 1232967, 2054945, 3698901, 6164835, 18494505]

約数ペア:

[(1, 18494505), (3, 6164835), (5, 3698901), (9, 2054945), (15, 1232967), (19, 973395), (45, 410989), (57, 324465), (95, 194679), (97, 190665), (171, 108155), (223, 82935), (285, 64893), (291, 63555), (485, 38133), (669, 27645), (855, 21631), (873, 21185), (1115, 16587), (1455, 12711), (1843, 10035), (2007, 9215), (3345, 5529), (4237, 4365)]