20566996

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{521}}^1$

素因数の和:735

約数の個数: 24

約数和(自身を含む): 36832320

約数和(自身を除く): 16265324

約数列:

[1, 2, 4, 71, 139, 142, 278, 284, 521, 556, 1042, 2084, 9869, 19738, 36991, 39476, 72419, 73982, 144838, 147964, 289676, 5141749, 10283498, 20566996]

約数ペア:

[(1, 20566996), (2, 10283498), (4, 5141749), (71, 289676), (139, 147964), (142, 144838), (278, 73982), (284, 72419), (521, 39476), (556, 36991), (1042, 19738), (2084, 9869)]