19954005

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{4603}}^1$

素因数の和:4645

約数の個数: 24

約数和(自身を含む): 33922272

約数和(自身を除く): 13968267

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 289, 867, 1445, 4335, 4603, 13809, 23015, 69045, 78251, 234753, 391255, 1173765, 1330267, 3990801, 6651335, 19954005]

約数ペア:

[(1, 19954005), (3, 6651335), (5, 3990801), (15, 1330267), (17, 1173765), (51, 391255), (85, 234753), (255, 78251), (289, 69045), (867, 23015), (1445, 13809), (4335, 4603)]