21896193

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{227}}^1$

素因数の和:357

約数の個数: 32

約数和(自身を含む): 33269760

約数和(自身を除く): 11373567

約数列:

[1, 3, 11, 33, 37, 79, 111, 227, 237, 407, 681, 869, 1221, 2497, 2607, 2923, 7491, 8399, 8769, 17933, 25197, 32153, 53799, 92389, 96459, 197263, 277167, 591789, 663521, 1990563, 7298731, 21896193]

約数ペア:

[(1, 21896193), (3, 7298731), (11, 1990563), (33, 663521), (37, 591789), (79, 277167), (111, 197263), (227, 96459), (237, 92389), (407, 53799), (681, 32153), (869, 25197), (1221, 17933), (2497, 8769), (2607, 8399), (2923, 7491)]