21222544

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{9973}}^1$

素因数の和:10007

約数の個数: 40

約数和(自身を含む): 49471040

約数和(自身を除く): 28248496

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 9973, 19946, 39892, 69811, 79784, 139622, 159568, 189487, 279244, 378974, 558488, 757948, 1116976, 1326409, 1515896, 2652818, 3031792, 5305636, 10611272, 21222544]

約数ペア:

[(1, 21222544), (2, 10611272), (4, 5305636), (7, 3031792), (8, 2652818), (14, 1515896), (16, 1326409), (19, 1116976), (28, 757948), (38, 558488), (56, 378974), (76, 279244), (112, 189487), (133, 159568), (152, 139622), (266, 79784), (304, 69811), (532, 39892), (1064, 19946), (2128, 9973)]