21100112

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1187}}^1$

素因数の和:1307

約数の個数: 40

約数和(自身を含む): 45077472

約数和(自身を除く): 23977360

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 101, 176, 202, 404, 808, 1111, 1187, 1616, 2222, 2374, 4444, 4748, 8888, 9496, 13057, 17776, 18992, 26114, 52228, 104456, 119887, 208912, 239774, 479548, 959096, 1318757, 1918192, 2637514, 5275028, 10550056, 21100112]

約数ペア:

[(1, 21100112), (2, 10550056), (4, 5275028), (8, 2637514), (11, 1918192), (16, 1318757), (22, 959096), (44, 479548), (88, 239774), (101, 208912), (176, 119887), (202, 104456), (404, 52228), (808, 26114), (1111, 18992), (1187, 17776), (1616, 13057), (2222, 9496), (2374, 8888), (4444, 4748)]