20666316

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:403

約数の個数: 72

約数和(自身を含む): 54400192

約数和(自身を除く): 33733876

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 43, 44, 66, 86, 121, 129, 132, 172, 242, 258, 331, 363, 473, 484, 516, 662, 726, 946, 993, 1324, 1419, 1452, 1892, 1986, 2838, 3641, 3972, 5203, 5676, 7282, 10406, 10923, 14233, 14564, 15609, 20812, 21846, 28466, 31218, 40051, 42699, 43692, 56932, 62436, 80102, 85398, 120153, 156563, 160204, 170796, 240306, 313126, 469689, 480612, 626252, 939378, 1722193, 1878756, 3444386, 5166579, 6888772, 10333158, 20666316]

約数ペア:

[(1, 20666316), (2, 10333158), (3, 6888772), (4, 5166579), (6, 3444386), (11, 1878756), (12, 1722193), (22, 939378), (33, 626252), (43, 480612), (44, 469689), (66, 313126), (86, 240306), (121, 170796), (129, 160204), (132, 156563), (172, 120153), (242, 85398), (258, 80102), (331, 62436), (363, 56932), (473, 43692), (484, 42699), (516, 40051), (662, 31218), (726, 28466), (946, 21846), (993, 20812), (1324, 15609), (1419, 14564), (1452, 14233), (1892, 10923), (1986, 10406), (2838, 7282), (3641, 5676), (3972, 5203)]