15939385

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2179}}^1$

素因数の和:2221

約数の個数: 32

約数和(自身を含む): 25113600

約数和(自身を除く): 9174215

約数列:

[1, 5, 7, 11, 19, 35, 55, 77, 95, 133, 209, 385, 665, 1045, 1463, 2179, 7315, 10895, 15253, 23969, 41401, 76265, 119845, 167783, 207005, 289807, 455411, 838915, 1449035, 2277055, 3187877, 15939385]

約数ペア:

[(1, 15939385), (5, 3187877), (7, 2277055), (11, 1449035), (19, 838915), (35, 455411), (55, 289807), (77, 207005), (95, 167783), (133, 119845), (209, 76265), (385, 41401), (665, 23969), (1045, 15253), (1463, 10895), (2179, 7315)]