21940170

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{547}}^1$

素因数の和:755

約数の個数: 64

約数和(自身を含む): 60604416

約数和(自身を除く): 38664246

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 191, 210, 382, 547, 573, 955, 1094, 1146, 1337, 1641, 1910, 2674, 2735, 2865, 3282, 3829, 4011, 5470, 5730, 6685, 7658, 8022, 8205, 11487, 13370, 16410, 19145, 20055, 22974, 38290, 40110, 57435, 104477, 114870, 208954, 313431, 522385, 626862, 731339, 1044770, 1462678, 1567155, 2194017, 3134310, 3656695, 4388034, 7313390, 10970085, 21940170]

約数ペア:

[(1, 21940170), (2, 10970085), (3, 7313390), (5, 4388034), (6, 3656695), (7, 3134310), (10, 2194017), (14, 1567155), (15, 1462678), (21, 1044770), (30, 731339), (35, 626862), (42, 522385), (70, 313431), (105, 208954), (191, 114870), (210, 104477), (382, 57435), (547, 40110), (573, 38290), (955, 22974), (1094, 20055), (1146, 19145), (1337, 16410), (1641, 13370), (1910, 11487), (2674, 8205), (2735, 8022), (2865, 7658), (3282, 6685), (3829, 5730), (4011, 5470)]