21494148

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{653}}^1$

素因数の和:884

約数の個数: 48

約数和(自身を含む): 54350016

約数和(自身を除く): 32855868

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 211, 422, 633, 653, 844, 1266, 1306, 1959, 2532, 2612, 2743, 3918, 5486, 7836, 8229, 8489, 10972, 16458, 16978, 25467, 32916, 33956, 50934, 101868, 137783, 275566, 413349, 551132, 826698, 1653396, 1791179, 3582358, 5373537, 7164716, 10747074, 21494148]

約数ペア:

[(1, 21494148), (2, 10747074), (3, 7164716), (4, 5373537), (6, 3582358), (12, 1791179), (13, 1653396), (26, 826698), (39, 551132), (52, 413349), (78, 275566), (156, 137783), (211, 101868), (422, 50934), (633, 33956), (653, 32916), (844, 25467), (1266, 16978), (1306, 16458), (1959, 10972), (2532, 8489), (2612, 8229), (2743, 7836), (3918, 5486)]