81821214

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{331}}^1\times {\mathrm{443}}^1$

素因数の和:813

約数の個数: 48

約数和(自身を含む): 183965184

約数和(自身を除く): 102143970

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 331, 443, 558, 662, 886, 993, 1329, 1986, 2658, 2979, 3987, 5958, 7974, 10261, 13733, 20522, 27466, 30783, 41199, 61566, 82398, 92349, 123597, 146633, 184698, 247194, 293266, 439899, 879798, 1319697, 2639394, 4545623, 9091246, 13636869, 27273738, 40910607, 81821214]

約数ペア:

[(1, 81821214), (2, 40910607), (3, 27273738), (6, 13636869), (9, 9091246), (18, 4545623), (31, 2639394), (62, 1319697), (93, 879798), (186, 439899), (279, 293266), (331, 247194), (443, 184698), (558, 146633), (662, 123597), (886, 92349), (993, 82398), (1329, 61566), (1986, 41199), (2658, 30783), (2979, 27466), (3987, 20522), (5958, 13733), (7974, 10261)]