21167138320

素因数分解:

$2^4\times 5^1\times {\mathrm{313}}^1\times {\mathrm{845333}}^1$

素因数の和:845659

約数の個数: 40

約数和(自身を含む): 49370886936

約数和(自身を除く): 28203748616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 313, 626, 1252, 1565, 2504, 3130, 5008, 6260, 12520, 25040, 845333, 1690666, 3381332, 4226665, 6762664, 8453330, 13525328, 16906660, 33813320, 67626640, 264589229, 529178458, 1058356916, 1322946145, 2116713832, 2645892290, 4233427664, 5291784580, 10583569160, 21167138320]

約数ペア:

[(1, 21167138320), (2, 10583569160), (4, 5291784580), (5, 4233427664), (8, 2645892290), (10, 2116713832), (16, 1322946145), (20, 1058356916), (40, 529178458), (80, 264589229), (313, 67626640), (626, 33813320), (1252, 16906660), (1565, 13525328), (2504, 8453330), (3130, 6762664), (5008, 4226665), (6260, 3381332), (12520, 1690666), (25040, 845333)]