16905915

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^3\times {\mathrm{19}}^1$

素因数の和:75

約数の個数: 80

約数和(自身を含む): 34557600

約数和(自身を除く): 17651685

約数列:

[1, 3, 5, 9, 13, 15, 19, 27, 39, 45, 57, 65, 81, 95, 117, 135, 169, 171, 195, 247, 285, 351, 405, 507, 513, 585, 741, 845, 855, 1053, 1235, 1521, 1539, 1755, 2197, 2223, 2535, 2565, 3211, 3705, 4563, 5265, 6591, 6669, 7605, 7695, 9633, 10985, 11115, 13689, 16055, 19773, 20007, 22815, 28899, 32955, 33345, 41743, 48165, 59319, 68445, 86697, 98865, 100035, 125229, 144495, 177957, 208715, 260091, 296595, 375687, 433485, 626145, 889785, 1127061, 1300455, 1878435, 3381183, 5635305, 16905915]

約数ペア:

[(1, 16905915), (3, 5635305), (5, 3381183), (9, 1878435), (13, 1300455), (15, 1127061), (19, 889785), (27, 626145), (39, 433485), (45, 375687), (57, 296595), (65, 260091), (81, 208715), (95, 177957), (117, 144495), (135, 125229), (169, 100035), (171, 98865), (195, 86697), (247, 68445), (285, 59319), (351, 48165), (405, 41743), (507, 33345), (513, 32955), (585, 28899), (741, 22815), (845, 20007), (855, 19773), (1053, 16055), (1235, 13689), (1521, 11115), (1539, 10985), (1755, 9633), (2197, 7695), (2223, 7605), (2535, 6669), (2565, 6591), (3211, 5265), (3705, 4563)]