28964871

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 47882016

約数和(自身を除く): 18917145

約数列:

[1, 3, 9, 13, 27, 39, 53, 81, 117, 159, 173, 243, 351, 477, 519, 689, 1053, 1431, 1557, 2067, 2249, 3159, 4293, 4671, 6201, 6747, 9169, 12879, 14013, 18603, 20241, 27507, 42039, 55809, 60723, 82521, 119197, 167427, 182169, 247563, 357591, 546507, 742689, 1072773, 2228067, 3218319, 9654957, 28964871]

約数ペア:

[(1, 28964871), (3, 9654957), (9, 3218319), (13, 2228067), (27, 1072773), (39, 742689), (53, 546507), (81, 357591), (117, 247563), (159, 182169), (173, 167427), (243, 119197), (351, 82521), (477, 60723), (519, 55809), (689, 42039), (1053, 27507), (1431, 20241), (1557, 18603), (2067, 14013), (2249, 12879), (3159, 9169), (4293, 6747), (4671, 6201)]