21000992201

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{1153}}^1\times {\mathrm{136949}}^1$

素因数の和:138128

約数の個数: 16

約数和(自身を含む): 25286448000

約数和(自身を除く): 4285455799

約数列:

[1, 7, 19, 133, 1153, 8071, 21907, 136949, 153349, 958643, 2602031, 18214217, 157902197, 1105315379, 3000141743, 21000992201]

約数ペア:

[(1, 21000992201), (7, 3000141743), (19, 1105315379), (133, 157902197), (1153, 18214217), (8071, 2602031), (21907, 958643), (136949, 153349)]