21000209061

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{158233}}^1$

素因数の和:158373

約数の個数: 32

約数和(自身を含む): 31261974912

約数和(自身を除く): 10261765851

約数列:

[1, 3, 13, 39, 41, 83, 123, 249, 533, 1079, 1599, 3237, 3403, 10209, 44239, 132717, 158233, 474699, 2057029, 6171087, 6487553, 13133339, 19462659, 39400017, 84338189, 170733407, 253014567, 512200221, 538466899, 1615400697, 7000069687, 21000209061]

約数ペア:

[(1, 21000209061), (3, 7000069687), (13, 1615400697), (39, 538466899), (41, 512200221), (83, 253014567), (123, 170733407), (249, 84338189), (533, 39400017), (1079, 19462659), (1599, 13133339), (3237, 6487553), (3403, 6171087), (10209, 2057029), (44239, 474699), (132717, 158233)]