21428751

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{6163}}^1$

素因数の和:6246

約数の個数: 16

約数和(自身を含む): 30573440

約数和(自身を除く): 9144689

約数列:

[1, 3, 19, 57, 61, 183, 1159, 3477, 6163, 18489, 117097, 351291, 375943, 1127829, 7142917, 21428751]

約数ペア:

[(1, 21428751), (3, 7142917), (19, 1127829), (57, 375943), (61, 351291), (183, 117097), (1159, 18489), (3477, 6163)]