201421115

素因数分解:

$5^1\times 7^2\times {\mathrm{653}}^1\times {\mathrm{1259}}^1$

素因数の和:1931

約数の個数: 24

約数和(自身を含む): 281821680

約数和(自身を除く): 80400565

約数列:

[1, 5, 7, 35, 49, 245, 653, 1259, 3265, 4571, 6295, 8813, 22855, 31997, 44065, 61691, 159985, 308455, 822127, 4110635, 5754889, 28774445, 40284223, 201421115]

約数ペア:

[(1, 201421115), (5, 40284223), (7, 28774445), (35, 5754889), (49, 4110635), (245, 822127), (653, 308455), (1259, 159985), (3265, 61691), (4571, 44065), (6295, 31997), (8813, 22855)]