21518904

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2203}}^1$

素因数の和:2260

約数の個数: 64

約数和(自身を含む): 60301440

約数和(自身を除く): 38782536

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 37, 44, 66, 74, 88, 111, 132, 148, 222, 264, 296, 407, 444, 814, 888, 1221, 1628, 2203, 2442, 3256, 4406, 4884, 6609, 8812, 9768, 13218, 17624, 24233, 26436, 48466, 52872, 72699, 81511, 96932, 145398, 163022, 193864, 244533, 290796, 326044, 489066, 581592, 652088, 896621, 978132, 1793242, 1956264, 2689863, 3586484, 5379726, 7172968, 10759452, 21518904]

約数ペア:

[(1, 21518904), (2, 10759452), (3, 7172968), (4, 5379726), (6, 3586484), (8, 2689863), (11, 1956264), (12, 1793242), (22, 978132), (24, 896621), (33, 652088), (37, 581592), (44, 489066), (66, 326044), (74, 290796), (88, 244533), (111, 193864), (132, 163022), (148, 145398), (222, 96932), (264, 81511), (296, 72699), (407, 52872), (444, 48466), (814, 26436), (888, 24233), (1221, 17624), (1628, 13218), (2203, 9768), (2442, 8812), (3256, 6609), (4406, 4884)]