20089251

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1291}}^1$

素因数の和:1336

約数の個数: 48

約数和(自身を含む): 37623040

約数和(自身を除く): 17533789

約数列:

[1, 3, 7, 9, 13, 19, 21, 39, 57, 63, 91, 117, 133, 171, 247, 273, 399, 741, 819, 1197, 1291, 1729, 2223, 3873, 5187, 9037, 11619, 15561, 16783, 24529, 27111, 50349, 73587, 81333, 117481, 151047, 171703, 220761, 318877, 352443, 515109, 956631, 1057329, 1545327, 2232139, 2869893, 6696417, 20089251]

約数ペア:

[(1, 20089251), (3, 6696417), (7, 2869893), (9, 2232139), (13, 1545327), (19, 1057329), (21, 956631), (39, 515109), (57, 352443), (63, 318877), (91, 220761), (117, 171703), (133, 151047), (171, 117481), (247, 81333), (273, 73587), (399, 50349), (741, 27111), (819, 24529), (1197, 16783), (1291, 15561), (1729, 11619), (2223, 9037), (3873, 5187)]