18540405

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{773}}^1$

素因数の和:838

約数の個数: 48

約数和(自身を含む): 35498736

約数和(自身を除く): 16958331

約数列:

[1, 3, 5, 9, 13, 15, 39, 41, 45, 65, 117, 123, 195, 205, 369, 533, 585, 615, 773, 1599, 1845, 2319, 2665, 3865, 4797, 6957, 7995, 10049, 11595, 23985, 30147, 31693, 34785, 50245, 90441, 95079, 150735, 158465, 285237, 412009, 452205, 475395, 1236027, 1426185, 2060045, 3708081, 6180135, 18540405]

約数ペア:

[(1, 18540405), (3, 6180135), (5, 3708081), (9, 2060045), (13, 1426185), (15, 1236027), (39, 475395), (41, 452205), (45, 412009), (65, 285237), (117, 158465), (123, 150735), (195, 95079), (205, 90441), (369, 50245), (533, 34785), (585, 31693), (615, 30147), (773, 23985), (1599, 11595), (1845, 10049), (2319, 7995), (2665, 6957), (3865, 4797)]