56782719

素因数分解:

$3^2\times 7^2\times {\mathrm{331}}^1\times {\mathrm{389}}^1$

素因数の和:740

約数の個数: 36

約数和(自身を含む): 95944680

約数和(自身を除く): 39161961

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 331, 389, 441, 993, 1167, 2317, 2723, 2979, 3501, 6951, 8169, 16219, 19061, 20853, 24507, 48657, 57183, 128759, 145971, 171549, 386277, 901313, 1158831, 2703939, 6309191, 8111817, 18927573, 56782719]

約数ペア:

[(1, 56782719), (3, 18927573), (7, 8111817), (9, 6309191), (21, 2703939), (49, 1158831), (63, 901313), (147, 386277), (331, 171549), (389, 145971), (441, 128759), (993, 57183), (1167, 48657), (2317, 24507), (2723, 20853), (2979, 19061), (3501, 16219), (6951, 8169)]