21655144

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1$

素因数の和:119

約数の個数: 96

約数和(自身を含む): 52557120

約数和(自身を除く): 30901976

約数列:

[1, 2, 4, 7, 8, 14, 17, 23, 28, 34, 43, 46, 56, 68, 86, 92, 119, 136, 161, 172, 184, 238, 301, 322, 344, 391, 476, 529, 602, 644, 731, 782, 952, 989, 1058, 1204, 1288, 1462, 1564, 1978, 2116, 2408, 2737, 2924, 3128, 3703, 3956, 4232, 5117, 5474, 5848, 6923, 7406, 7912, 8993, 10234, 10948, 13846, 14812, 16813, 17986, 20468, 21896, 22747, 27692, 29624, 33626, 35972, 40936, 45494, 55384, 62951, 67252, 71944, 90988, 117691, 125902, 134504, 159229, 181976, 235382, 251804, 318458, 386699, 470764, 503608, 636916, 773398, 941528, 1273832, 1546796, 2706893, 3093592, 5413786, 10827572, 21655144]

約数ペア:

[(1, 21655144), (2, 10827572), (4, 5413786), (7, 3093592), (8, 2706893), (14, 1546796), (17, 1273832), (23, 941528), (28, 773398), (34, 636916), (43, 503608), (46, 470764), (56, 386699), (68, 318458), (86, 251804), (92, 235382), (119, 181976), (136, 159229), (161, 134504), (172, 125902), (184, 117691), (238, 90988), (301, 71944), (322, 67252), (344, 62951), (391, 55384), (476, 45494), (529, 40936), (602, 35972), (644, 33626), (731, 29624), (782, 27692), (952, 22747), (989, 21896), (1058, 20468), (1204, 17986), (1288, 16813), (1462, 14812), (1564, 13846), (1978, 10948), (2116, 10234), (2408, 8993), (2737, 7912), (2924, 7406), (3128, 6923), (3703, 5848), (3956, 5474), (4232, 5117)]