21081684

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2017}}^1$

素因数の和:2104

約数の個数: 48

約数和(自身を含む): 53791808

約数和(自身を除く): 32710124

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 67, 78, 134, 156, 201, 268, 402, 804, 871, 1742, 2017, 2613, 3484, 4034, 5226, 6051, 8068, 10452, 12102, 24204, 26221, 52442, 78663, 104884, 135139, 157326, 270278, 314652, 405417, 540556, 810834, 1621668, 1756807, 3513614, 5270421, 7027228, 10540842, 21081684]

約数ペア:

[(1, 21081684), (2, 10540842), (3, 7027228), (4, 5270421), (6, 3513614), (12, 1756807), (13, 1621668), (26, 810834), (39, 540556), (52, 405417), (67, 314652), (78, 270278), (134, 157326), (156, 135139), (201, 104884), (268, 78663), (402, 52442), (804, 26221), (871, 24204), (1742, 12102), (2017, 10452), (2613, 8068), (3484, 6051), (4034, 5226)]