21352970

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{263}}^1\times {\mathrm{353}}^1$

素因数の和:646

約数の個数: 32

約数和(自身を含む): 40372992

約数和(自身を除く): 19020022

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 263, 353, 526, 706, 1315, 1765, 2630, 3530, 6049, 8119, 12098, 16238, 30245, 40595, 60490, 81190, 92839, 185678, 464195, 928390, 2135297, 4270594, 10676485, 21352970]

約数ペア:

[(1, 21352970), (2, 10676485), (5, 4270594), (10, 2135297), (23, 928390), (46, 464195), (115, 185678), (230, 92839), (263, 81190), (353, 60490), (526, 40595), (706, 30245), (1315, 16238), (1765, 12098), (2630, 8119), (3530, 6049)]