1271780349

素因数分解:

$3^1\times 7^2\times {\mathrm{307}}^1\times {\mathrm{28181}}^1$

素因数の和:28505

約数の個数: 24

約数和(自身を含む): 1979052768

約数和(自身を除く): 707272419

約数列:

[1, 3, 7, 21, 49, 147, 307, 921, 2149, 6447, 15043, 28181, 45129, 84543, 197267, 591801, 1380869, 4142607, 8651567, 25954701, 60560969, 181682907, 423926783, 1271780349]

約数ペア:

[(1, 1271780349), (3, 423926783), (7, 181682907), (21, 60560969), (49, 25954701), (147, 8651567), (307, 4142607), (921, 1380869), (2149, 591801), (6447, 197267), (15043, 84543), (28181, 45129)]