18520888

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:268

約数の個数: 64

約数和(自身を含む): 39813120

約数和(自身を除く): 21292232

約数列:

[1, 2, 4, 8, 17, 23, 31, 34, 46, 62, 68, 92, 124, 136, 184, 191, 248, 382, 391, 527, 713, 764, 782, 1054, 1426, 1528, 1564, 2108, 2852, 3128, 3247, 4216, 4393, 5704, 5921, 6494, 8786, 11842, 12121, 12988, 17572, 23684, 24242, 25976, 35144, 47368, 48484, 74681, 96968, 100657, 136183, 149362, 201314, 272366, 298724, 402628, 544732, 597448, 805256, 1089464, 2315111, 4630222, 9260444, 18520888]

約数ペア:

[(1, 18520888), (2, 9260444), (4, 4630222), (8, 2315111), (17, 1089464), (23, 805256), (31, 597448), (34, 544732), (46, 402628), (62, 298724), (68, 272366), (92, 201314), (124, 149362), (136, 136183), (184, 100657), (191, 96968), (248, 74681), (382, 48484), (391, 47368), (527, 35144), (713, 25976), (764, 24242), (782, 23684), (1054, 17572), (1426, 12988), (1528, 12121), (1564, 11842), (2108, 8786), (2852, 6494), (3128, 5921), (3247, 5704), (4216, 4393)]