21958881

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{379}}^1$

素因数の和:509

約数の個数: 32

約数和(自身を含む): 35020800

約数和(自身を除く): 13061919

約数列:

[1, 3, 7, 21, 31, 89, 93, 217, 267, 379, 623, 651, 1137, 1869, 2653, 2759, 7959, 8277, 11749, 19313, 33731, 35247, 57939, 82243, 101193, 236117, 246729, 708351, 1045661, 3136983, 7319627, 21958881]

約数ペア:

[(1, 21958881), (3, 7319627), (7, 3136983), (21, 1045661), (31, 708351), (89, 246729), (93, 236117), (217, 101193), (267, 82243), (379, 57939), (623, 35247), (651, 33731), (1137, 19313), (1869, 11749), (2653, 8277), (2759, 7959)]