71921997

素因数分解:

$3^2\times 7^1\times {\mathrm{331}}^1\times {\mathrm{3449}}^1$

素因数の和:3793

約数の個数: 24

約数和(自身を含む): 119121600

約数和(自身を除く): 47199603

約数列:

[1, 3, 7, 9, 21, 63, 331, 993, 2317, 2979, 3449, 6951, 10347, 20853, 24143, 31041, 72429, 217287, 1141619, 3424857, 7991333, 10274571, 23973999, 71921997]

約数ペア:

[(1, 71921997), (3, 23973999), (7, 10274571), (9, 7991333), (21, 3424857), (63, 1141619), (331, 217287), (993, 72429), (2317, 31041), (2979, 24143), (3449, 20853), (6951, 10347)]