647966137

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1\times {\mathrm{521}}^1$

素因数の和:793

約数の個数: 32

約数和(自身を含む): 813818880

約数和(自身を除く): 165852743

約数列:

[1, 7, 13, 79, 91, 173, 521, 553, 1027, 1211, 2249, 3647, 6773, 7189, 13667, 15743, 41159, 47411, 90133, 95669, 177671, 288113, 535067, 630931, 1171729, 1243697, 3745469, 7120507, 8202103, 49843549, 92566591, 647966137]

約数ペア:

[(1, 647966137), (7, 92566591), (13, 49843549), (79, 8202103), (91, 7120507), (173, 3745469), (521, 1243697), (553, 1171729), (1027, 630931), (1211, 535067), (2249, 288113), (3647, 177671), (6773, 95669), (7189, 90133), (13667, 47411), (15743, 41159)]