21760416

素因数分解:

$2^5\times 3^2\times {\mathrm{75557}}^1$

素因数の和:75573

約数の個数: 36

約数和(自身を含む): 61882002

約数和(自身を除く): 40121586

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 288, 75557, 151114, 226671, 302228, 453342, 604456, 680013, 906684, 1208912, 1360026, 1813368, 2417824, 2720052, 3626736, 5440104, 7253472, 10880208, 21760416]

約数ペア:

[(1, 21760416), (2, 10880208), (3, 7253472), (4, 5440104), (6, 3626736), (8, 2720052), (9, 2417824), (12, 1813368), (16, 1360026), (18, 1208912), (24, 906684), (32, 680013), (36, 604456), (48, 453342), (72, 302228), (96, 226671), (144, 151114), (288, 75557)]