19615684

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 39384576

約数和(自身を除く): 19768892

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 73, 124, 146, 197, 292, 341, 394, 682, 788, 803, 1364, 1606, 2167, 2263, 3212, 4334, 4526, 6107, 8668, 9052, 12214, 14381, 24428, 24893, 28762, 49786, 57524, 67177, 99572, 134354, 158191, 268708, 316382, 445811, 632764, 891622, 1783244, 4903921, 9807842, 19615684]

約数ペア:

[(1, 19615684), (2, 9807842), (4, 4903921), (11, 1783244), (22, 891622), (31, 632764), (44, 445811), (62, 316382), (73, 268708), (124, 158191), (146, 134354), (197, 99572), (292, 67177), (341, 57524), (394, 49786), (682, 28762), (788, 24893), (803, 24428), (1364, 14381), (1606, 12214), (2167, 9052), (2263, 8668), (3212, 6107), (4334, 4526)]