19837188

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{223}}^1\times {\mathrm{353}}^1$

素因数の和:593

約数の個数: 72

約数和(自身を含む): 57727488

約数和(自身を除く): 37890300

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 223, 252, 353, 446, 669, 706, 892, 1059, 1338, 1412, 1561, 2007, 2118, 2471, 2676, 3122, 3177, 4014, 4236, 4683, 4942, 6244, 6354, 7413, 8028, 9366, 9884, 12708, 14049, 14826, 18732, 22239, 28098, 29652, 44478, 56196, 78719, 88956, 157438, 236157, 314876, 472314, 551033, 708471, 944628, 1102066, 1416942, 1653099, 2204132, 2833884, 3306198, 4959297, 6612396, 9918594, 19837188]

約数ペア:

[(1, 19837188), (2, 9918594), (3, 6612396), (4, 4959297), (6, 3306198), (7, 2833884), (9, 2204132), (12, 1653099), (14, 1416942), (18, 1102066), (21, 944628), (28, 708471), (36, 551033), (42, 472314), (63, 314876), (84, 236157), (126, 157438), (223, 88956), (252, 78719), (353, 56196), (446, 44478), (669, 29652), (706, 28098), (892, 22239), (1059, 18732), (1338, 14826), (1412, 14049), (1561, 12708), (2007, 9884), (2118, 9366), (2471, 8028), (2676, 7413), (3122, 6354), (3177, 6244), (4014, 4942), (4236, 4683)]