20668884

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{337}}^1$

素因数の和:632

約数の個数: 48

約数和(自身を含む): 51105600

約数和(自身を除く): 30436716

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228, 269, 337, 538, 674, 807, 1011, 1076, 1348, 1614, 2022, 3228, 4044, 5111, 6403, 10222, 12806, 15333, 19209, 20444, 25612, 30666, 38418, 61332, 76836, 90653, 181306, 271959, 362612, 543918, 1087836, 1722407, 3444814, 5167221, 6889628, 10334442, 20668884]

約数ペア:

[(1, 20668884), (2, 10334442), (3, 6889628), (4, 5167221), (6, 3444814), (12, 1722407), (19, 1087836), (38, 543918), (57, 362612), (76, 271959), (114, 181306), (228, 90653), (269, 76836), (337, 61332), (538, 38418), (674, 30666), (807, 25612), (1011, 20444), (1076, 19209), (1348, 15333), (1614, 12806), (2022, 10222), (3228, 6403), (4044, 5111)]