21729995

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{619}}^1$

素因数の和:707

約数の個数: 32

約数和(自身を含む): 32140800

約数和(自身を除く): 10410805

約数列:

[1, 5, 7, 17, 35, 59, 85, 119, 295, 413, 595, 619, 1003, 2065, 3095, 4333, 5015, 7021, 10523, 21665, 35105, 36521, 52615, 73661, 182605, 255647, 368305, 620857, 1278235, 3104285, 4345999, 21729995]

約数ペア:

[(1, 21729995), (5, 4345999), (7, 3104285), (17, 1278235), (35, 620857), (59, 368305), (85, 255647), (119, 182605), (295, 73661), (413, 52615), (595, 36521), (619, 35105), (1003, 21665), (2065, 10523), (3095, 7021), (4333, 5015)]