21382064

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{3919}}^1$

素因数の和:3969

約数の個数: 40

約数和(自身を含む): 46663680

約数和(自身を除く): 25281616

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 44, 62, 88, 124, 176, 248, 341, 496, 682, 1364, 2728, 3919, 5456, 7838, 15676, 31352, 43109, 62704, 86218, 121489, 172436, 242978, 344872, 485956, 689744, 971912, 1336379, 1943824, 2672758, 5345516, 10691032, 21382064]

約数ペア:

[(1, 21382064), (2, 10691032), (4, 5345516), (8, 2672758), (11, 1943824), (16, 1336379), (22, 971912), (31, 689744), (44, 485956), (62, 344872), (88, 242978), (124, 172436), (176, 121489), (248, 86218), (341, 62704), (496, 43109), (682, 31352), (1364, 15676), (2728, 7838), (3919, 5456)]