18987164

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{353}}^1$

素因数の和:494

約数の個数: 48

約数和(自身を含む): 40678848

約数和(自身を除く): 21691684

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 113, 119, 226, 238, 353, 452, 476, 706, 791, 1412, 1582, 1921, 2471, 3164, 3842, 4942, 6001, 7684, 9884, 12002, 13447, 24004, 26894, 39889, 42007, 53788, 79778, 84014, 159556, 168028, 279223, 558446, 678113, 1116892, 1356226, 2712452, 4746791, 9493582, 18987164]

約数ペア:

[(1, 18987164), (2, 9493582), (4, 4746791), (7, 2712452), (14, 1356226), (17, 1116892), (28, 678113), (34, 558446), (68, 279223), (113, 168028), (119, 159556), (226, 84014), (238, 79778), (353, 53788), (452, 42007), (476, 39889), (706, 26894), (791, 24004), (1412, 13447), (1582, 12002), (1921, 9884), (2471, 7684), (3164, 6001), (3842, 4942)]