15993978

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2663}}^1$

素因数の和:2699

約数の個数: 64

約数和(自身を含む): 42964992

約数和(自身を除く): 26971014

約数列:

[1, 2, 3, 6, 7, 11, 13, 14, 21, 22, 26, 33, 39, 42, 66, 77, 78, 91, 143, 154, 182, 231, 273, 286, 429, 462, 546, 858, 1001, 2002, 2663, 3003, 5326, 6006, 7989, 15978, 18641, 29293, 34619, 37282, 55923, 58586, 69238, 87879, 103857, 111846, 175758, 205051, 207714, 242333, 380809, 410102, 484666, 615153, 726999, 761618, 1142427, 1230306, 1453998, 2284854, 2665663, 5331326, 7996989, 15993978]

約数ペア:

[(1, 15993978), (2, 7996989), (3, 5331326), (6, 2665663), (7, 2284854), (11, 1453998), (13, 1230306), (14, 1142427), (21, 761618), (22, 726999), (26, 615153), (33, 484666), (39, 410102), (42, 380809), (66, 242333), (77, 207714), (78, 205051), (91, 175758), (143, 111846), (154, 103857), (182, 87879), (231, 69238), (273, 58586), (286, 55923), (429, 37282), (462, 34619), (546, 29293), (858, 18641), (1001, 15978), (2002, 7989), (2663, 6006), (3003, 5326)]