21025130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9689}}^1$

素因数の和:9734

約数の個数: 32

約数和(自身を含む): 44651520

約数和(自身を除く): 23626390

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 9689, 19378, 48445, 67823, 96890, 135646, 300359, 339115, 600718, 678230, 1501795, 2102513, 3003590, 4205026, 10512565, 21025130]

約数ペア:

[(1, 21025130), (2, 10512565), (5, 4205026), (7, 3003590), (10, 2102513), (14, 1501795), (31, 678230), (35, 600718), (62, 339115), (70, 300359), (155, 135646), (217, 96890), (310, 67823), (434, 48445), (1085, 19378), (2170, 9689)]