19492245

素因数分解:

$3^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 35747712

約数和(自身を除く): 16255467

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 81, 135, 183, 243, 263, 305, 405, 549, 789, 915, 1215, 1315, 1647, 2367, 2745, 3945, 4941, 7101, 8235, 11835, 14823, 16043, 21303, 24705, 35505, 48129, 63909, 74115, 80215, 106515, 144387, 240645, 319545, 433161, 721935, 1299483, 2165805, 3898449, 6497415, 19492245]

約数ペア:

[(1, 19492245), (3, 6497415), (5, 3898449), (9, 2165805), (15, 1299483), (27, 721935), (45, 433161), (61, 319545), (81, 240645), (135, 144387), (183, 106515), (243, 80215), (263, 74115), (305, 63909), (405, 48129), (549, 35505), (789, 24705), (915, 21303), (1215, 16043), (1315, 14823), (1647, 11835), (2367, 8235), (2745, 7101), (3945, 4941)]