18787630821

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1\times {\mathrm{653}}^1\times {\mathrm{823}}^1$

素因数の和:1793

約数の個数: 32

約数和(自身を含む): 25798029312

約数和(自身を除く): 7010398491

約数列:

[1, 3, 43, 129, 271, 653, 813, 823, 1959, 2469, 11653, 28079, 34959, 35389, 84237, 106167, 176963, 223033, 530889, 537419, 669099, 1612257, 7609409, 9590419, 22828227, 23109017, 28771257, 69327051, 145640549, 436921647, 6262543607, 18787630821]

約数ペア:

[(1, 18787630821), (3, 6262543607), (43, 436921647), (129, 145640549), (271, 69327051), (653, 28771257), (813, 23109017), (823, 22828227), (1959, 9590419), (2469, 7609409), (11653, 1612257), (28079, 669099), (34959, 537419), (35389, 530889), (84237, 223033), (106167, 176963)]