2177955

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1$

素因数の和:117

約数の個数: 64

約数和(自身を含む): 4475520

約数和(自身を除く): 2297565

約数列:

[1, 3, 5, 9, 13, 15, 17, 27, 39, 45, 51, 65, 73, 85, 117, 135, 153, 195, 219, 221, 255, 351, 365, 459, 585, 657, 663, 765, 949, 1095, 1105, 1241, 1755, 1971, 1989, 2295, 2847, 3285, 3315, 3723, 4745, 5967, 6205, 8541, 9855, 9945, 11169, 14235, 16133, 18615, 25623, 29835, 33507, 42705, 48399, 55845, 80665, 128115, 145197, 167535, 241995, 435591, 725985, 2177955]

約数ペア:

[(1, 2177955), (3, 725985), (5, 435591), (9, 241995), (13, 167535), (15, 145197), (17, 128115), (27, 80665), (39, 55845), (45, 48399), (51, 42705), (65, 33507), (73, 29835), (85, 25623), (117, 18615), (135, 16133), (153, 14235), (195, 11169), (219, 9945), (221, 9855), (255, 8541), (351, 6205), (365, 5967), (459, 4745), (585, 3723), (657, 3315), (663, 3285), (765, 2847), (949, 2295), (1095, 1989), (1105, 1971), (1241, 1755)]