21621816

素因数分解:

$2^3\times 3^4\times {\mathrm{61}}^1\times {\mathrm{547}}^1$

素因数の和:626

約数の個数: 80

約数和(自身を含む): 61666440

約数和(自身を除く): 40044624

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 61, 72, 81, 108, 122, 162, 183, 216, 244, 324, 366, 488, 547, 549, 648, 732, 1094, 1098, 1464, 1641, 1647, 2188, 2196, 3282, 3294, 4376, 4392, 4923, 4941, 6564, 6588, 9846, 9882, 13128, 13176, 14769, 19692, 19764, 29538, 33367, 39384, 39528, 44307, 59076, 66734, 88614, 100101, 118152, 133468, 177228, 200202, 266936, 300303, 354456, 400404, 600606, 800808, 900909, 1201212, 1801818, 2402424, 2702727, 3603636, 5405454, 7207272, 10810908, 21621816]

約数ペア:

[(1, 21621816), (2, 10810908), (3, 7207272), (4, 5405454), (6, 3603636), (8, 2702727), (9, 2402424), (12, 1801818), (18, 1201212), (24, 900909), (27, 800808), (36, 600606), (54, 400404), (61, 354456), (72, 300303), (81, 266936), (108, 200202), (122, 177228), (162, 133468), (183, 118152), (216, 100101), (244, 88614), (324, 66734), (366, 59076), (488, 44307), (547, 39528), (549, 39384), (648, 33367), (732, 29538), (1094, 19764), (1098, 19692), (1464, 14769), (1641, 13176), (1647, 13128), (2188, 9882), (2196, 9846), (3282, 6588), (3294, 6564), (4376, 4941), (4392, 4923)]