221796148

素因数分解:

$2^2\times 7^3\times {\mathrm{161659}}^1$

素因数の和:161684

約数の個数: 24

約数和(自身を含む): 452648000

約数和(自身を除く): 230851852

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 161659, 323318, 646636, 1131613, 2263226, 4526452, 7921291, 15842582, 31685164, 55449037, 110898074, 221796148]

約数ペア:

[(1, 221796148), (2, 110898074), (4, 55449037), (7, 31685164), (14, 15842582), (28, 7921291), (49, 4526452), (98, 2263226), (196, 1131613), (343, 646636), (686, 323318), (1372, 161659)]