21323860

素因数分解:

$2^2\times 5^1\times {\mathrm{661}}^1\times {\mathrm{1613}}^1$

素因数の和:2283

約数の個数: 24

約数和(自身を含む): 44875656

約数和(自身を除く): 23551796

約数列:

[1, 2, 4, 5, 10, 20, 661, 1322, 1613, 2644, 3226, 3305, 6452, 6610, 8065, 13220, 16130, 32260, 1066193, 2132386, 4264772, 5330965, 10661930, 21323860]

約数ペア:

[(1, 21323860), (2, 10661930), (4, 5330965), (5, 4264772), (10, 2132386), (20, 1066193), (661, 32260), (1322, 16130), (1613, 13220), (2644, 8065), (3226, 6610), (3305, 6452)]