1989968379

素因数分解:

$3^1\times 7^1\times {\mathrm{12457}}^1\times {\mathrm{7607}}^1$

素因数の和:20074

約数の個数: 16

約数和(自身を含む): 3032974848

約数和(自身を除く): 1043006469

約数列:

[1, 3, 7, 21, 7607, 12457, 22821, 37371, 53249, 87199, 159747, 261597, 94760399, 284281197, 663322793, 1989968379]

約数ペア:

[(1, 1989968379), (3, 663322793), (7, 284281197), (21, 94760399), (7607, 261597), (12457, 159747), (22821, 87199), (37371, 53249)]