21516810

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{102461}}^1$

素因数の和:102478

約数の個数: 32

約数和(自身を含む): 59018112

約数和(自身を除く): 37501302

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 102461, 204922, 307383, 512305, 614766, 717227, 1024610, 1434454, 1536915, 2151681, 3073830, 3586135, 4303362, 7172270, 10758405, 21516810]

約数ペア:

[(1, 21516810), (2, 10758405), (3, 7172270), (5, 4303362), (6, 3586135), (7, 3073830), (10, 2151681), (14, 1536915), (15, 1434454), (21, 1024610), (30, 717227), (35, 614766), (42, 512305), (70, 307383), (105, 204922), (210, 102461)]