21507070

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{7193}}^1$

素因数の和:7236

約数の個数: 32

約数和(自身を含む): 43509312

約数和(自身を除く): 22002242

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 7193, 14386, 35965, 71930, 93509, 165439, 187018, 330878, 467545, 827195, 935090, 1654390, 2150707, 4301414, 10753535, 21507070]

約数ペア:

[(1, 21507070), (2, 10753535), (5, 4301414), (10, 2150707), (13, 1654390), (23, 935090), (26, 827195), (46, 467545), (65, 330878), (115, 187018), (130, 165439), (230, 93509), (299, 71930), (598, 35965), (1495, 14386), (2990, 7193)]