20888973117

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{241}}^1\times {\mathrm{28921}}^1$

素因数の和:29211

約数の個数: 40

約数和(自身を含む): 32181972152

約数和(自身を除く): 11292999035

約数列:

[1, 3, 9, 27, 37, 81, 111, 241, 333, 723, 999, 2169, 2997, 6507, 8917, 19521, 26751, 28921, 80253, 86763, 240759, 260289, 722277, 780867, 1070077, 2342601, 3210231, 6969961, 9630693, 20909883, 28892079, 62729649, 86676237, 188188947, 257888557, 564566841, 773665671, 2320997013, 6962991039, 20888973117]

約数ペア:

[(1, 20888973117), (3, 6962991039), (9, 2320997013), (27, 773665671), (37, 564566841), (81, 257888557), (111, 188188947), (241, 86676237), (333, 62729649), (723, 28892079), (999, 20909883), (2169, 9630693), (2997, 6969961), (6507, 3210231), (8917, 2342601), (19521, 1070077), (26751, 780867), (28921, 722277), (80253, 260289), (86763, 240759)]