21167308760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{661}}^1\times {\mathrm{61583}}^1$

素因数の和:62268

約数の個数: 64

約数和(自身を含む): 51368446080

約数和(自身を除く): 30201137320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 661, 1322, 2644, 3305, 5288, 6610, 8593, 13220, 17186, 26440, 34372, 42965, 61583, 68744, 85930, 123166, 171860, 246332, 307915, 343720, 492664, 615830, 800579, 1231660, 1601158, 2463320, 3202316, 4002895, 6404632, 8005790, 16011580, 32023160, 40706363, 81412726, 162825452, 203531815, 325650904, 407063630, 529182719, 814127260, 1058365438, 1628254520, 2116730876, 2645913595, 4233461752, 5291827190, 10583654380, 21167308760]

約数ペア:

[(1, 21167308760), (2, 10583654380), (4, 5291827190), (5, 4233461752), (8, 2645913595), (10, 2116730876), (13, 1628254520), (20, 1058365438), (26, 814127260), (40, 529182719), (52, 407063630), (65, 325650904), (104, 203531815), (130, 162825452), (260, 81412726), (520, 40706363), (661, 32023160), (1322, 16011580), (2644, 8005790), (3305, 6404632), (5288, 4002895), (6610, 3202316), (8593, 2463320), (13220, 1601158), (17186, 1231660), (26440, 800579), (34372, 615830), (42965, 492664), (61583, 343720), (68744, 307915), (85930, 246332), (123166, 171860)]