21517936

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{1187}}^1$

素因数の和:1309

約数の個数: 40

約数和(自身を含む): 45961344

約数和(自身を除く): 24443408

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 103, 176, 206, 412, 824, 1133, 1187, 1648, 2266, 2374, 4532, 4748, 9064, 9496, 13057, 18128, 18992, 26114, 52228, 104456, 122261, 208912, 244522, 489044, 978088, 1344871, 1956176, 2689742, 5379484, 10758968, 21517936]

約数ペア:

[(1, 21517936), (2, 10758968), (4, 5379484), (8, 2689742), (11, 1956176), (16, 1344871), (22, 978088), (44, 489044), (88, 244522), (103, 208912), (176, 122261), (206, 104456), (412, 52228), (824, 26114), (1133, 18992), (1187, 18128), (1648, 13057), (2266, 9496), (2374, 9064), (4532, 4748)]