21731178

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{1229}}^1$

素因数の和:1662

約数の個数: 32

約数和(自身を含む): 49829760

約数和(自身を除く): 28098582

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 421, 842, 1229, 1263, 2458, 2526, 2947, 3687, 5894, 7374, 8603, 8841, 17206, 17682, 25809, 51618, 517409, 1034818, 1552227, 3104454, 3621863, 7243726, 10865589, 21731178]

約数ペア:

[(1, 21731178), (2, 10865589), (3, 7243726), (6, 3621863), (7, 3104454), (14, 1552227), (21, 1034818), (42, 517409), (421, 51618), (842, 25809), (1229, 17682), (1263, 17206), (2458, 8841), (2526, 8603), (2947, 7374), (3687, 5894)]