20409228

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{80989}}^1$

素因数の和:81006

約数の個数: 36

約数和(自身を含む): 58960720

約数和(自身を除く): 38551492

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 80989, 161978, 242967, 323956, 485934, 566923, 728901, 971868, 1133846, 1457802, 1700769, 2267692, 2915604, 3401538, 5102307, 6803076, 10204614, 20409228]

約数ペア:

[(1, 20409228), (2, 10204614), (3, 6803076), (4, 5102307), (6, 3401538), (7, 2915604), (9, 2267692), (12, 1700769), (14, 1457802), (18, 1133846), (21, 971868), (28, 728901), (36, 566923), (42, 485934), (63, 323956), (84, 242967), (126, 161978), (252, 80989)]