16990728

素因数分解:

$2^3\times 3^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{557}}^1$

素因数の和:638

約数の個数: 64

約数和(自身を含む): 44997120

約数和(自身を除く): 28006392

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 31, 41, 62, 82, 93, 123, 124, 164, 186, 246, 248, 328, 372, 492, 557, 744, 984, 1114, 1271, 1671, 2228, 2542, 3342, 3813, 4456, 5084, 6684, 7626, 10168, 13368, 15252, 17267, 22837, 30504, 34534, 45674, 51801, 68511, 69068, 91348, 103602, 137022, 138136, 182696, 207204, 274044, 414408, 548088, 707947, 1415894, 2123841, 2831788, 4247682, 5663576, 8495364, 16990728]

約数ペア:

[(1, 16990728), (2, 8495364), (3, 5663576), (4, 4247682), (6, 2831788), (8, 2123841), (12, 1415894), (24, 707947), (31, 548088), (41, 414408), (62, 274044), (82, 207204), (93, 182696), (123, 138136), (124, 137022), (164, 103602), (186, 91348), (246, 69068), (248, 68511), (328, 51801), (372, 45674), (492, 34534), (557, 30504), (744, 22837), (984, 17267), (1114, 15252), (1271, 13368), (1671, 10168), (2228, 7626), (2542, 6684), (3342, 5084), (3813, 4456)]