21535318

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1\times {\mathrm{167}}^1$

素因数の和:388

約数の個数: 32

約数和(自身を含む): 37997568

約数和(自身を除く): 16462250

約数列:

[1, 2, 7, 14, 61, 122, 151, 167, 302, 334, 427, 854, 1057, 1169, 2114, 2338, 9211, 10187, 18422, 20374, 25217, 50434, 64477, 71309, 128954, 142618, 176519, 353038, 1538237, 3076474, 10767659, 21535318]

約数ペア:

[(1, 21535318), (2, 10767659), (7, 3076474), (14, 1538237), (61, 353038), (122, 176519), (151, 142618), (167, 128954), (302, 71309), (334, 64477), (427, 50434), (854, 25217), (1057, 20374), (1169, 18422), (2114, 10187), (2338, 9211)]