21222423

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{631}}^1$

素因数の和:775

約数の個数: 24

約数和(自身を含む): 31845216

約数和(自身を除く): 10622793

約数列:

[1, 3, 9, 37, 101, 111, 303, 333, 631, 909, 1893, 3737, 5679, 11211, 23347, 33633, 63731, 70041, 191193, 210123, 573579, 2358047, 7074141, 21222423]

約数ペア:

[(1, 21222423), (3, 7074141), (9, 2358047), (37, 573579), (101, 210123), (111, 191193), (303, 70041), (333, 63731), (631, 33633), (909, 23347), (1893, 11211), (3737, 5679)]