7280553

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:357

約数の個数: 32

約数和(自身を含む): 11888640

約数和(自身を除く): 4608087

約数列:

[1, 3, 7, 19, 21, 57, 71, 133, 213, 257, 399, 497, 771, 1349, 1491, 1799, 4047, 4883, 5397, 9443, 14649, 18247, 28329, 34181, 54741, 102543, 127729, 346693, 383187, 1040079, 2426851, 7280553]

約数ペア:

[(1, 7280553), (3, 2426851), (7, 1040079), (19, 383187), (21, 346693), (57, 127729), (71, 102543), (133, 54741), (213, 34181), (257, 28329), (399, 18247), (497, 14649), (771, 9443), (1349, 5397), (1491, 4883), (1799, 4047)]