21506450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1429}}^1$

素因数の和:1491

約数の個数: 48

約数和(自身を含む): 46812480

約数和(自身を除く): 25306030

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 43, 50, 70, 86, 175, 215, 301, 350, 430, 602, 1075, 1429, 1505, 2150, 2858, 3010, 7145, 7525, 10003, 14290, 15050, 20006, 35725, 50015, 61447, 71450, 100030, 122894, 250075, 307235, 430129, 500150, 614470, 860258, 1536175, 2150645, 3072350, 4301290, 10753225, 21506450]

約数ペア:

[(1, 21506450), (2, 10753225), (5, 4301290), (7, 3072350), (10, 2150645), (14, 1536175), (25, 860258), (35, 614470), (43, 500150), (50, 430129), (70, 307235), (86, 250075), (175, 122894), (215, 100030), (301, 71450), (350, 61447), (430, 50015), (602, 35725), (1075, 20006), (1429, 15050), (1505, 14290), (2150, 10003), (2858, 7525), (3010, 7145)]