21063990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{14939}}^1$

素因数の和:14996

約数の個数: 32

約数和(自身を含む): 51632640

約数和(自身を除く): 30568650

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 47, 94, 141, 235, 282, 470, 705, 1410, 14939, 29878, 44817, 74695, 89634, 149390, 224085, 448170, 702133, 1404266, 2106399, 3510665, 4212798, 7021330, 10531995, 21063990]

約数ペア:

[(1, 21063990), (2, 10531995), (3, 7021330), (5, 4212798), (6, 3510665), (10, 2106399), (15, 1404266), (30, 702133), (47, 448170), (94, 224085), (141, 149390), (235, 89634), (282, 74695), (470, 44817), (705, 29878), (1410, 14939)]