21337448

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{839}}^1$

素因数の和:890

約数の個数: 48

約数和(自身を含む): 46418400

約数和(自身を除く): 25080952

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 68, 88, 136, 187, 289, 374, 578, 748, 839, 1156, 1496, 1678, 2312, 3179, 3356, 6358, 6712, 9229, 12716, 14263, 18458, 25432, 28526, 36916, 57052, 73832, 114104, 156893, 242471, 313786, 484942, 627572, 969884, 1255144, 1939768, 2667181, 5334362, 10668724, 21337448]

約数ペア:

[(1, 21337448), (2, 10668724), (4, 5334362), (8, 2667181), (11, 1939768), (17, 1255144), (22, 969884), (34, 627572), (44, 484942), (68, 313786), (88, 242471), (136, 156893), (187, 114104), (289, 73832), (374, 57052), (578, 36916), (748, 28526), (839, 25432), (1156, 18458), (1496, 14263), (1678, 12716), (2312, 9229), (3179, 6712), (3356, 6358)]