20178513502

素因数分解:

$2^1\times 7^2\times {\mathrm{23}}^2\times {\mathrm{389231}}^1$

素因数の和:389293

約数の個数: 36

約数和(自身を含む): 36806945616

約数和(自身を除く): 16628432114

約数列:

[1, 2, 7, 14, 23, 46, 49, 98, 161, 322, 529, 1058, 1127, 2254, 3703, 7406, 25921, 51842, 389231, 778462, 2724617, 5449234, 8952313, 17904626, 19072319, 38144638, 62666191, 125332382, 205903199, 411806398, 438663337, 877326674, 1441322393, 2882644786, 10089256751, 20178513502]

約数ペア:

[(1, 20178513502), (2, 10089256751), (7, 2882644786), (14, 1441322393), (23, 877326674), (46, 438663337), (49, 411806398), (98, 205903199), (161, 125332382), (322, 62666191), (529, 38144638), (1058, 19072319), (1127, 17904626), (2254, 8952313), (3703, 5449234), (7406, 2724617), (25921, 778462), (51842, 389231)]