21553455

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{18661}}^1$

素因数の和:18687

約数の個数: 32

約数和(自身を含む): 42997248

約数和(自身を除く): 21443793

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 18661, 55983, 93305, 130627, 205271, 279915, 391881, 615813, 653135, 1026355, 1436897, 1959405, 3079065, 4310691, 7184485, 21553455]

約数ペア:

[(1, 21553455), (3, 7184485), (5, 4310691), (7, 3079065), (11, 1959405), (15, 1436897), (21, 1026355), (33, 653135), (35, 615813), (55, 391881), (77, 279915), (105, 205271), (165, 130627), (231, 93305), (385, 55983), (1155, 18661)]