21167978589

素因数分解:

$3^5\times {\mathrm{31}}^1\times {\mathrm{227}}^1\times {\mathrm{12379}}^1$

素因数の和:12652

約数の個数: 48

約数和(自身を含む): 32878110720

約数和(自身を除く): 11710132131

約数列:

[1, 3, 9, 27, 31, 81, 93, 227, 243, 279, 681, 837, 2043, 2511, 6129, 7037, 7533, 12379, 18387, 21111, 37137, 55161, 63333, 111411, 189999, 334233, 383749, 569997, 1002699, 1151247, 1709991, 2810033, 3008097, 3453741, 8430099, 10361223, 25290297, 31083669, 75870891, 87111023, 93251007, 227612673, 261333069, 682838019, 783999207, 2351997621, 7055992863, 21167978589]

約数ペア:

[(1, 21167978589), (3, 7055992863), (9, 2351997621), (27, 783999207), (31, 682838019), (81, 261333069), (93, 227612673), (227, 93251007), (243, 87111023), (279, 75870891), (681, 31083669), (837, 25290297), (2043, 10361223), (2511, 8430099), (6129, 3453741), (7037, 3008097), (7533, 2810033), (12379, 1709991), (18387, 1151247), (21111, 1002699), (37137, 569997), (55161, 383749), (63333, 334233), (111411, 189999)]