19478667

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{271}}^1$

素因数の和:403

約数の個数: 32

約数和(自身を含む): 29854720

約数和(自身を除く): 10376053

約数列:

[1, 3, 13, 19, 39, 57, 97, 247, 271, 291, 741, 813, 1261, 1843, 3523, 3783, 5149, 5529, 10569, 15447, 23959, 26287, 66937, 71877, 78861, 200811, 341731, 499453, 1025193, 1498359, 6492889, 19478667]

約数ペア:

[(1, 19478667), (3, 6492889), (13, 1498359), (19, 1025193), (39, 499453), (57, 341731), (97, 200811), (247, 78861), (271, 71877), (291, 66937), (741, 26287), (813, 23959), (1261, 15447), (1843, 10569), (3523, 5529), (3783, 5149)]