28204428

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19751}}^1$

素因数の和:19782

約数の個数: 48

約数和(自身を含む): 79640064

約数和(自身を除く): 51435636

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 42, 51, 68, 84, 102, 119, 204, 238, 357, 476, 714, 1428, 19751, 39502, 59253, 79004, 118506, 138257, 237012, 276514, 335767, 414771, 553028, 671534, 829542, 1007301, 1343068, 1659084, 2014602, 2350369, 4029204, 4700738, 7051107, 9401476, 14102214, 28204428]

約数ペア:

[(1, 28204428), (2, 14102214), (3, 9401476), (4, 7051107), (6, 4700738), (7, 4029204), (12, 2350369), (14, 2014602), (17, 1659084), (21, 1343068), (28, 1007301), (34, 829542), (42, 671534), (51, 553028), (68, 414771), (84, 335767), (102, 276514), (119, 237012), (204, 138257), (238, 118506), (357, 79004), (476, 59253), (714, 39502), (1428, 19751)]