28423278

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2131}}^1$

素因数の和:2174

約数の個数: 64

約数和(自身を含む): 71635200

約数和(自身を除く): 43211922

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 27, 38, 39, 54, 57, 78, 114, 117, 171, 234, 247, 342, 351, 494, 513, 702, 741, 1026, 1482, 2131, 2223, 4262, 4446, 6393, 6669, 12786, 13338, 19179, 27703, 38358, 40489, 55406, 57537, 80978, 83109, 115074, 121467, 166218, 242934, 249327, 364401, 498654, 526357, 728802, 747981, 1052714, 1093203, 1495962, 1579071, 2186406, 3158142, 4737213, 9474426, 14211639, 28423278]

約数ペア:

[(1, 28423278), (2, 14211639), (3, 9474426), (6, 4737213), (9, 3158142), (13, 2186406), (18, 1579071), (19, 1495962), (26, 1093203), (27, 1052714), (38, 747981), (39, 728802), (54, 526357), (57, 498654), (78, 364401), (114, 249327), (117, 242934), (171, 166218), (234, 121467), (247, 115074), (342, 83109), (351, 80978), (494, 57537), (513, 55406), (702, 40489), (741, 38358), (1026, 27703), (1482, 19179), (2131, 13338), (2223, 12786), (4262, 6669), (4446, 6393)]