28799991

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 48746880

約数和(自身を除く): 19946889

約数列:

[1, 3, 9, 11, 19, 33, 57, 61, 99, 171, 183, 209, 251, 549, 627, 671, 753, 1159, 1881, 2013, 2259, 2761, 3477, 4769, 6039, 8283, 10431, 12749, 14307, 15311, 24849, 38247, 42921, 45933, 52459, 114741, 137799, 157377, 168421, 290909, 472131, 505263, 872727, 1515789, 2618181, 3199999, 9599997, 28799991]

約数ペア:

[(1, 28799991), (3, 9599997), (9, 3199999), (11, 2618181), (19, 1515789), (33, 872727), (57, 505263), (61, 472131), (99, 290909), (171, 168421), (183, 157377), (209, 137799), (251, 114741), (549, 52459), (627, 45933), (671, 42921), (753, 38247), (1159, 24849), (1881, 15311), (2013, 14307), (2259, 12749), (2761, 10431), (3477, 8283), (4769, 6039)]