21220962

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{2539}}^1$

素因数の和:2750

約数の個数: 32

約数和(自身を含む): 48768000

約数和(自身を除く): 27547038

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 199, 398, 597, 1194, 1393, 2539, 2786, 4179, 5078, 7617, 8358, 15234, 17773, 35546, 53319, 106638, 505261, 1010522, 1515783, 3031566, 3536827, 7073654, 10610481, 21220962]

約数ペア:

[(1, 21220962), (2, 10610481), (3, 7073654), (6, 3536827), (7, 3031566), (14, 1515783), (21, 1010522), (42, 505261), (199, 106638), (398, 53319), (597, 35546), (1194, 17773), (1393, 15234), (2539, 8358), (2786, 7617), (4179, 5078)]