1378251

素因数分解:

$3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{167}}^1$

素因数の和:311

約数の個数: 24

約数和(自身を含む): 2306304

約数和(自身を除く): 928053

約数列:

[1, 3, 7, 9, 21, 63, 131, 167, 393, 501, 917, 1169, 1179, 1503, 2751, 3507, 8253, 10521, 21877, 65631, 153139, 196893, 459417, 1378251]

約数ペア:

[(1, 1378251), (3, 459417), (7, 196893), (9, 153139), (21, 65631), (63, 21877), (131, 10521), (167, 8253), (393, 3507), (501, 2751), (917, 1503), (1169, 1179)]