18880965

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{433}}^1$

素因数の和:483

約数の個数: 64

約数和(自身を含む): 37497600

約数和(自身を除く): 18616635

約数列:

[1, 3, 5, 9, 15, 17, 19, 27, 45, 51, 57, 85, 95, 135, 153, 171, 255, 285, 323, 433, 459, 513, 765, 855, 969, 1299, 1615, 2165, 2295, 2565, 2907, 3897, 4845, 6495, 7361, 8227, 8721, 11691, 14535, 19485, 22083, 24681, 36805, 41135, 43605, 58455, 66249, 74043, 110415, 123405, 139859, 198747, 222129, 331245, 370215, 419577, 699295, 993735, 1110645, 1258731, 2097885, 3776193, 6293655, 18880965]

約数ペア:

[(1, 18880965), (3, 6293655), (5, 3776193), (9, 2097885), (15, 1258731), (17, 1110645), (19, 993735), (27, 699295), (45, 419577), (51, 370215), (57, 331245), (85, 222129), (95, 198747), (135, 139859), (153, 123405), (171, 110415), (255, 74043), (285, 66249), (323, 58455), (433, 43605), (459, 41135), (513, 36805), (765, 24681), (855, 22083), (969, 19485), (1299, 14535), (1615, 11691), (2165, 8721), (2295, 8227), (2565, 7361), (2907, 6495), (3897, 4845)]