21187570

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1667}}^1$

素因数の和:1746

約数の個数: 32

約数和(自身を含む): 40352256

約数和(自身を除く): 19164686

約数列:

[1, 2, 5, 10, 31, 41, 62, 82, 155, 205, 310, 410, 1271, 1667, 2542, 3334, 6355, 8335, 12710, 16670, 51677, 68347, 103354, 136694, 258385, 341735, 516770, 683470, 2118757, 4237514, 10593785, 21187570]

約数ペア:

[(1, 21187570), (2, 10593785), (5, 4237514), (10, 2118757), (31, 683470), (41, 516770), (62, 341735), (82, 258385), (155, 136694), (205, 103354), (310, 68347), (410, 51677), (1271, 16670), (1667, 12710), (2542, 8335), (3334, 6355)]