21398080

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{6079}}^1$

素因数の和:6107

約数の個数: 56

約数和(自身を含む): 55595520

約数和(自身を除く): 34197440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 440, 704, 880, 1760, 3520, 6079, 12158, 24316, 30395, 48632, 60790, 66869, 97264, 121580, 133738, 194528, 243160, 267476, 334345, 389056, 486320, 534952, 668690, 972640, 1069904, 1337380, 1945280, 2139808, 2674760, 4279616, 5349520, 10699040, 21398080]

約数ペア:

[(1, 21398080), (2, 10699040), (4, 5349520), (5, 4279616), (8, 2674760), (10, 2139808), (11, 1945280), (16, 1337380), (20, 1069904), (22, 972640), (32, 668690), (40, 534952), (44, 486320), (55, 389056), (64, 334345), (80, 267476), (88, 243160), (110, 194528), (160, 133738), (176, 121580), (220, 97264), (320, 66869), (352, 60790), (440, 48632), (704, 30395), (880, 24316), (1760, 12158), (3520, 6079)]