21786050

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{277}}^1$

素因数の和:324

約数の個数: 72

約数和(自身を含む): 48140148

約数和(自身を除く): 26354098

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 50, 55, 65, 110, 121, 130, 143, 242, 275, 277, 286, 325, 550, 554, 605, 650, 715, 1210, 1385, 1430, 1573, 2770, 3025, 3047, 3146, 3575, 3601, 6050, 6094, 6925, 7150, 7202, 7865, 13850, 15235, 15730, 18005, 30470, 33517, 36010, 39325, 39611, 67034, 76175, 78650, 79222, 90025, 152350, 167585, 180050, 198055, 335170, 396110, 435721, 837925, 871442, 990275, 1675850, 1980550, 2178605, 4357210, 10893025, 21786050]

約数ペア:

[(1, 21786050), (2, 10893025), (5, 4357210), (10, 2178605), (11, 1980550), (13, 1675850), (22, 990275), (25, 871442), (26, 837925), (50, 435721), (55, 396110), (65, 335170), (110, 198055), (121, 180050), (130, 167585), (143, 152350), (242, 90025), (275, 79222), (277, 78650), (286, 76175), (325, 67034), (550, 39611), (554, 39325), (605, 36010), (650, 33517), (715, 30470), (1210, 18005), (1385, 15730), (1430, 15235), (1573, 13850), (2770, 7865), (3025, 7202), (3047, 7150), (3146, 6925), (3575, 6094), (3601, 6050)]