21381036369

素因数分解:

$3^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{1063}}^1\times {\mathrm{1777}}^1$

素因数の和:2875

約数の個数: 64

約数和(自身を含む): 36322406400

約数和(自身を除く): 14941370031

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 343, 539, 1029, 1063, 1617, 1777, 3189, 3773, 5331, 7441, 11319, 11693, 12439, 19547, 22323, 35079, 37317, 52087, 58641, 81851, 87073, 136829, 156261, 245553, 261219, 364609, 410487, 572957, 609511, 957803, 1093827, 1718871, 1828533, 1888951, 2873409, 4010699, 5666853, 6704621, 12032097, 13222657, 20113863, 20778461, 39667971, 62335383, 92558599, 145449227, 277675797, 436347681, 647910193, 1018144589, 1943730579, 3054433767, 7127012123, 21381036369]

約数ペア:

[(1, 21381036369), (3, 7127012123), (7, 3054433767), (11, 1943730579), (21, 1018144589), (33, 647910193), (49, 436347681), (77, 277675797), (147, 145449227), (231, 92558599), (343, 62335383), (539, 39667971), (1029, 20778461), (1063, 20113863), (1617, 13222657), (1777, 12032097), (3189, 6704621), (3773, 5666853), (5331, 4010699), (7441, 2873409), (11319, 1888951), (11693, 1828533), (12439, 1718871), (19547, 1093827), (22323, 957803), (35079, 609511), (37317, 572957), (52087, 410487), (58641, 364609), (81851, 261219), (87073, 245553), (136829, 156261)]