21704310

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{691}}^1$

素因数の和:1053

約数の個数: 48

約数和(自身を含む): 56674800

約数和(自身を除く): 34970490

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 349, 691, 698, 1047, 1382, 1745, 2073, 2094, 3141, 3455, 3490, 4146, 5235, 6219, 6282, 6910, 10365, 10470, 12438, 15705, 20730, 31095, 31410, 62190, 241159, 482318, 723477, 1205795, 1446954, 2170431, 2411590, 3617385, 4340862, 7234770, 10852155, 21704310]

約数ペア:

[(1, 21704310), (2, 10852155), (3, 7234770), (5, 4340862), (6, 3617385), (9, 2411590), (10, 2170431), (15, 1446954), (18, 1205795), (30, 723477), (45, 482318), (90, 241159), (349, 62190), (691, 31410), (698, 31095), (1047, 20730), (1382, 15705), (1745, 12438), (2073, 10470), (2094, 10365), (3141, 6910), (3455, 6282), (3490, 6219), (4146, 5235)]