20295288

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{21683}}^1$

素因数の和:21708

約数の個数: 48

約数和(自身を含む): 59197320

約数和(自身を除く): 38902032

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 21683, 43366, 65049, 86732, 130098, 173464, 195147, 260196, 281879, 390294, 520392, 563758, 780588, 845637, 1127516, 1561176, 1691274, 2255032, 2536911, 3382548, 5073822, 6765096, 10147644, 20295288]

約数ペア:

[(1, 20295288), (2, 10147644), (3, 6765096), (4, 5073822), (6, 3382548), (8, 2536911), (9, 2255032), (12, 1691274), (13, 1561176), (18, 1127516), (24, 845637), (26, 780588), (36, 563758), (39, 520392), (52, 390294), (72, 281879), (78, 260196), (104, 195147), (117, 173464), (156, 130098), (234, 86732), (312, 65049), (468, 43366), (936, 21683)]