21000372

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{911}}^1$

素因数の和:1048

約数の個数: 48

約数和(自身を含む): 52399872

約数和(自身を除く): 31399500

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 113, 204, 226, 339, 452, 678, 911, 1356, 1822, 1921, 2733, 3644, 3842, 5466, 5763, 7684, 10932, 11526, 15487, 23052, 30974, 46461, 61948, 92922, 102943, 185844, 205886, 308829, 411772, 617658, 1235316, 1750031, 3500062, 5250093, 7000124, 10500186, 21000372]

約数ペア:

[(1, 21000372), (2, 10500186), (3, 7000124), (4, 5250093), (6, 3500062), (12, 1750031), (17, 1235316), (34, 617658), (51, 411772), (68, 308829), (102, 205886), (113, 185844), (204, 102943), (226, 92922), (339, 61948), (452, 46461), (678, 30974), (911, 23052), (1356, 15487), (1822, 11526), (1921, 10932), (2733, 7684), (3644, 5763), (3842, 5466)]