20991983522

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1\times {\mathrm{77359}}^1$

素因数の和:77610

約数の個数: 32

約数和(自身を含む): 34217875200

約数和(自身を除く): 13225891678

約数列:

[1, 2, 19, 37, 38, 74, 193, 386, 703, 1406, 3667, 7141, 7334, 14282, 77359, 135679, 154718, 271358, 1469821, 2862283, 2939642, 5724566, 14930287, 29860574, 54383377, 108766754, 283675453, 552420619, 567350906, 1104841238, 10495991761, 20991983522]

約数ペア:

[(1, 20991983522), (2, 10495991761), (19, 1104841238), (37, 567350906), (38, 552420619), (74, 283675453), (193, 108766754), (386, 54383377), (703, 29860574), (1406, 14930287), (3667, 5724566), (7141, 2939642), (7334, 2862283), (14282, 1469821), (77359, 271358), (135679, 154718)]