20513325

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{953}}^1$

素因数の和:1014

約数の個数: 48

約数和(自身を含む): 39747456

約数和(自身を除く): 19234131

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 41, 75, 105, 123, 175, 205, 287, 525, 615, 861, 953, 1025, 1435, 2859, 3075, 4305, 4765, 6671, 7175, 14295, 20013, 21525, 23825, 33355, 39073, 71475, 100065, 117219, 166775, 195365, 273511, 500325, 586095, 820533, 976825, 1367555, 2930475, 4102665, 6837775, 20513325]

約数ペア:

[(1, 20513325), (3, 6837775), (5, 4102665), (7, 2930475), (15, 1367555), (21, 976825), (25, 820533), (35, 586095), (41, 500325), (75, 273511), (105, 195365), (123, 166775), (175, 117219), (205, 100065), (287, 71475), (525, 39073), (615, 33355), (861, 23825), (953, 21525), (1025, 20013), (1435, 14295), (2859, 7175), (3075, 6671), (4305, 4765)]