1971123

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1$

素因数の和:104

約数の個数: 48

約数和(自身を含む): 3545856

約数和(自身を除く): 1574733

約数列:

[1, 3, 7, 11, 21, 23, 33, 49, 53, 69, 77, 147, 159, 161, 231, 253, 371, 483, 539, 583, 759, 1113, 1127, 1219, 1617, 1749, 1771, 2597, 3381, 3657, 4081, 5313, 7791, 8533, 12243, 12397, 13409, 25599, 28567, 37191, 40227, 59731, 85701, 93863, 179193, 281589, 657041, 1971123]

約数ペア:

[(1, 1971123), (3, 657041), (7, 281589), (11, 179193), (21, 93863), (23, 85701), (33, 59731), (49, 40227), (53, 37191), (69, 28567), (77, 25599), (147, 13409), (159, 12397), (161, 12243), (231, 8533), (253, 7791), (371, 5313), (483, 4081), (539, 3657), (583, 3381), (759, 2597), (1113, 1771), (1127, 1749), (1219, 1617)]