1020621

素因数分解:

$3^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:201

約数の個数: 24

約数和(自身を含む): 1625184

約数和(自身を除く): 604563

約数列:

[1, 3, 7, 21, 49, 53, 131, 147, 159, 371, 393, 917, 1113, 2597, 2751, 6419, 6943, 7791, 19257, 20829, 48601, 145803, 340207, 1020621]

約数ペア:

[(1, 1020621), (3, 340207), (7, 145803), (21, 48601), (49, 20829), (53, 19257), (131, 7791), (147, 6943), (159, 6419), (371, 2751), (393, 2597), (917, 1113)]