21626178

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{1297}}^1$

素因数の和:1706

約数の個数: 32

約数和(自身を含む): 49593984

約数和(自身を除く): 27967806

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 397, 794, 1191, 1297, 2382, 2594, 2779, 3891, 5558, 7782, 8337, 9079, 16674, 18158, 27237, 54474, 514909, 1029818, 1544727, 3089454, 3604363, 7208726, 10813089, 21626178]

約数ペア:

[(1, 21626178), (2, 10813089), (3, 7208726), (6, 3604363), (7, 3089454), (14, 1544727), (21, 1029818), (42, 514909), (397, 54474), (794, 27237), (1191, 18158), (1297, 16674), (2382, 9079), (2594, 8337), (2779, 7782), (3891, 5558)]