16918713

素因数分解:

$3^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{563}}^1$

素因数の和:635

約数の個数: 40

約数和(自身を含む): 29481408

約数和(自身を除く): 12562695

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 81, 159, 189, 371, 477, 563, 567, 1113, 1431, 1689, 3339, 3941, 4293, 5067, 10017, 11823, 15201, 29839, 30051, 35469, 45603, 89517, 106407, 208873, 268551, 319221, 626619, 805653, 1879857, 2416959, 5639571, 16918713]

約数ペア:

[(1, 16918713), (3, 5639571), (7, 2416959), (9, 1879857), (21, 805653), (27, 626619), (53, 319221), (63, 268551), (81, 208873), (159, 106407), (189, 89517), (371, 45603), (477, 35469), (563, 30051), (567, 29839), (1113, 15201), (1431, 11823), (1689, 10017), (3339, 5067), (3941, 4293)]