221815215

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{4253}}^1$

素因数の和:4344

約数の個数: 48

約数和(自身を含む): 411446880

約数和(自身を除く): 189631665

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 61, 95, 171, 183, 285, 305, 549, 855, 915, 1159, 2745, 3477, 4253, 5795, 10431, 12759, 17385, 21265, 38277, 52155, 63795, 80807, 191385, 242421, 259433, 404035, 727263, 778299, 1212105, 1297165, 2334897, 3636315, 3891495, 4929227, 11674485, 14787681, 24646135, 44363043, 73938405, 221815215]

約数ペア:

[(1, 221815215), (3, 73938405), (5, 44363043), (9, 24646135), (15, 14787681), (19, 11674485), (45, 4929227), (57, 3891495), (61, 3636315), (95, 2334897), (171, 1297165), (183, 1212105), (285, 778299), (305, 727263), (549, 404035), (855, 259433), (915, 242421), (1159, 191385), (2745, 80807), (3477, 63795), (4253, 52155), (5795, 38277), (10431, 21265), (12759, 17385)]