20212545

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{461}}^1$

素因数の和:585

約数の個数: 32

約数和(自身を含む): 33707520

約数和(自身を除く): 13494975

約数列:

[1, 3, 5, 15, 37, 79, 111, 185, 237, 395, 461, 555, 1185, 1383, 2305, 2923, 6915, 8769, 14615, 17057, 36419, 43845, 51171, 85285, 109257, 182095, 255855, 546285, 1347503, 4042509, 6737515, 20212545]

約数ペア:

[(1, 20212545), (3, 6737515), (5, 4042509), (15, 1347503), (37, 546285), (79, 255855), (111, 182095), (185, 109257), (237, 85285), (395, 51171), (461, 43845), (555, 36419), (1185, 17057), (1383, 14615), (2305, 8769), (2923, 6915)]