21322408

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{929}}^1$

素因数の和:1105

約数の個数: 32

約数和(自身を含む): 42408000

約数和(自身を除く): 21085592

約数列:

[1, 2, 4, 8, 19, 38, 76, 151, 152, 302, 604, 929, 1208, 1858, 2869, 3716, 5738, 7432, 11476, 17651, 22952, 35302, 70604, 140279, 141208, 280558, 561116, 1122232, 2665301, 5330602, 10661204, 21322408]

約数ペア:

[(1, 21322408), (2, 10661204), (4, 5330602), (8, 2665301), (19, 1122232), (38, 561116), (76, 280558), (151, 141208), (152, 140279), (302, 70604), (604, 35302), (929, 22952), (1208, 17651), (1858, 11476), (2869, 7432), (3716, 5738)]