12991419

素因数分解:

$3^2\times 7^2\times {\mathrm{89}}^1\times {\mathrm{331}}^1$

素因数の和:440

約数の個数: 36

約数和(自身を含む): 22141080

約数和(自身を除く): 9149661

約数列:

[1, 3, 7, 9, 21, 49, 63, 89, 147, 267, 331, 441, 623, 801, 993, 1869, 2317, 2979, 4361, 5607, 6951, 13083, 16219, 20853, 29459, 39249, 48657, 88377, 145971, 206213, 265131, 618639, 1443491, 1855917, 4330473, 12991419]

約数ペア:

[(1, 12991419), (3, 4330473), (7, 1855917), (9, 1443491), (21, 618639), (49, 265131), (63, 206213), (89, 145971), (147, 88377), (267, 48657), (331, 39249), (441, 29459), (623, 20853), (801, 16219), (993, 13083), (1869, 6951), (2317, 5607), (2979, 4361)]