18901756

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{83}}^1\times {\mathrm{197}}^1$

素因数の和:318

約数の個数: 36

約数和(自身を含む): 35742168

約数和(自身を除く): 16840412

約数列:

[1, 2, 4, 17, 34, 68, 83, 166, 197, 289, 332, 394, 578, 788, 1156, 1411, 2822, 3349, 5644, 6698, 13396, 16351, 23987, 32702, 47974, 56933, 65404, 95948, 113866, 227732, 277967, 555934, 1111868, 4725439, 9450878, 18901756]

約数ペア:

[(1, 18901756), (2, 9450878), (4, 4725439), (17, 1111868), (34, 555934), (68, 277967), (83, 227732), (166, 113866), (197, 95948), (289, 65404), (332, 56933), (394, 47974), (578, 32702), (788, 23987), (1156, 16351), (1411, 13396), (2822, 6698), (3349, 5644)]