211978263

素因数分解:

$3^1\times 7^2\times {\mathrm{263}}^1\times {\mathrm{5483}}^1$

素因数の和:5763

約数の個数: 24

約数和(自身を含む): 330092928

約数和(自身を除く): 118114665

約数列:

[1, 3, 7, 21, 49, 147, 263, 789, 1841, 5483, 5523, 12887, 16449, 38381, 38661, 115143, 268667, 806001, 1442029, 4326087, 10094203, 30282609, 70659421, 211978263]

約数ペア:

[(1, 211978263), (3, 70659421), (7, 30282609), (21, 10094203), (49, 4326087), (147, 1442029), (263, 806001), (789, 268667), (1841, 115143), (5483, 38661), (5523, 38381), (12887, 16449)]