21763984

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{3989}}^1$

素因数の和:4039

約数の個数: 40

約数和(自身を含む): 47496960

約数和(自身を除く): 25732976

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 44, 62, 88, 124, 176, 248, 341, 496, 682, 1364, 2728, 3989, 5456, 7978, 15956, 31912, 43879, 63824, 87758, 123659, 175516, 247318, 351032, 494636, 702064, 989272, 1360249, 1978544, 2720498, 5440996, 10881992, 21763984]

約数ペア:

[(1, 21763984), (2, 10881992), (4, 5440996), (8, 2720498), (11, 1978544), (16, 1360249), (22, 989272), (31, 702064), (44, 494636), (62, 351032), (88, 247318), (124, 175516), (176, 123659), (248, 87758), (341, 63824), (496, 43879), (682, 31912), (1364, 15956), (2728, 7978), (3989, 5456)]