21177861405

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{435893}}^1$

素因数の和:436021

約数の個数: 32

約数和(自身を含む): 35150492160

約数和(自身を除く): 13972630755

約数列:

[1, 3, 5, 15, 41, 79, 123, 205, 237, 395, 615, 1185, 3239, 9717, 16195, 48585, 435893, 1307679, 2179465, 6538395, 17871613, 34435547, 53614839, 89358065, 103306641, 172177735, 268074195, 516533205, 1411857427, 4235572281, 7059287135, 21177861405]

約数ペア:

[(1, 21177861405), (3, 7059287135), (5, 4235572281), (15, 1411857427), (41, 516533205), (79, 268074195), (123, 172177735), (205, 103306641), (237, 89358065), (395, 53614839), (615, 34435547), (1185, 17871613), (3239, 6538395), (9717, 2179465), (16195, 1307679), (48585, 435893)]