21528650

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3011}}^1$

素因数の和:3047

約数の個数: 48

約数和(自身を含む): 47059488

約数和(自身を除く): 25530838

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 50, 55, 65, 110, 130, 143, 275, 286, 325, 550, 650, 715, 1430, 3011, 3575, 6022, 7150, 15055, 30110, 33121, 39143, 66242, 75275, 78286, 150550, 165605, 195715, 331210, 391430, 430573, 828025, 861146, 978575, 1656050, 1957150, 2152865, 4305730, 10764325, 21528650]

約数ペア:

[(1, 21528650), (2, 10764325), (5, 4305730), (10, 2152865), (11, 1957150), (13, 1656050), (22, 978575), (25, 861146), (26, 828025), (50, 430573), (55, 391430), (65, 331210), (110, 195715), (130, 165605), (143, 150550), (275, 78286), (286, 75275), (325, 66242), (550, 39143), (650, 33121), (715, 30110), (1430, 15055), (3011, 7150), (3575, 6022)]