31000389

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 51414912

約数和(自身を除く): 20414523

約数列:

[1, 3, 7, 21, 23, 49, 53, 69, 147, 159, 161, 173, 371, 483, 519, 1113, 1127, 1211, 1219, 2597, 3381, 3633, 3657, 3979, 7791, 8477, 8533, 9169, 11937, 25431, 25599, 27507, 27853, 59731, 64183, 83559, 179193, 192549, 194971, 210887, 449281, 584913, 632661, 1347843, 1476209, 4428627, 10333463, 31000389]

約数ペア:

[(1, 31000389), (3, 10333463), (7, 4428627), (21, 1476209), (23, 1347843), (49, 632661), (53, 584913), (69, 449281), (147, 210887), (159, 194971), (161, 192549), (173, 179193), (371, 83559), (483, 64183), (519, 59731), (1113, 27853), (1127, 27507), (1211, 25599), (1219, 25431), (2597, 11937), (3381, 9169), (3633, 8533), (3657, 8477), (3979, 7791)]