21167659205

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{971}}^1\times {\mathrm{8089}}^1$

素因数の和:9090

約数の個数: 48

約数和(自身を含む): 32271721920

約数和(自身を除く): 11104062715

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 385, 539, 971, 2695, 4855, 6797, 8089, 10681, 33985, 40445, 47579, 53405, 56623, 74767, 88979, 237895, 283115, 373835, 396361, 444895, 523369, 622853, 1981805, 2616845, 3114265, 4359971, 7854419, 21799855, 39272095, 54980933, 86398609, 274904665, 384866531, 431993045, 604790263, 1924332655, 3023951315, 4233531841, 21167659205]

約数ペア:

[(1, 21167659205), (5, 4233531841), (7, 3023951315), (11, 1924332655), (35, 604790263), (49, 431993045), (55, 384866531), (77, 274904665), (245, 86398609), (385, 54980933), (539, 39272095), (971, 21799855), (2695, 7854419), (4855, 4359971), (6797, 3114265), (8089, 2616845), (10681, 1981805), (33985, 622853), (40445, 523369), (47579, 444895), (53405, 396361), (56623, 373835), (74767, 283115), (88979, 237895)]