20798475

素因数分解:

$3^1\times 5^2\times {\mathrm{67}}^1\times {\mathrm{4139}}^1$

素因数の和:4219

約数の個数: 24

約数和(自身を含む): 34908480

約数和(自身を除く): 14110005

約数列:

[1, 3, 5, 15, 25, 67, 75, 201, 335, 1005, 1675, 4139, 5025, 12417, 20695, 62085, 103475, 277313, 310425, 831939, 1386565, 4159695, 6932825, 20798475]

約数ペア:

[(1, 20798475), (3, 6932825), (5, 4159695), (15, 1386565), (25, 831939), (67, 310425), (75, 277313), (201, 103475), (335, 62085), (1005, 20695), (1675, 12417), (4139, 5025)]