20850908

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{229}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 42194880

約数和(自身を除く): 21343972

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 103, 206, 221, 229, 412, 442, 458, 884, 916, 1339, 1751, 2678, 2977, 3502, 3893, 5356, 5954, 7004, 7786, 11908, 15572, 22763, 23587, 45526, 47174, 50609, 91052, 94348, 101218, 202436, 306631, 400979, 613262, 801958, 1226524, 1603916, 5212727, 10425454, 20850908]

約数ペア:

[(1, 20850908), (2, 10425454), (4, 5212727), (13, 1603916), (17, 1226524), (26, 801958), (34, 613262), (52, 400979), (68, 306631), (103, 202436), (206, 101218), (221, 94348), (229, 91052), (412, 50609), (442, 47174), (458, 45526), (884, 23587), (916, 22763), (1339, 15572), (1751, 11908), (2678, 7786), (2977, 7004), (3502, 5954), (3893, 5356)]