18938816

素因数分解:

$2^6\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{103}}^1$

素因数の和:158

約数の個数: 84

約数和(自身を含む): 43507152

約数和(自身を除く): 24568336

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 64, 68, 103, 104, 136, 169, 206, 208, 221, 272, 338, 412, 416, 442, 544, 676, 824, 832, 884, 1088, 1339, 1352, 1648, 1751, 1768, 2678, 2704, 2873, 3296, 3502, 3536, 5356, 5408, 5746, 6592, 7004, 7072, 10712, 10816, 11492, 14008, 14144, 17407, 21424, 22763, 22984, 28016, 34814, 42848, 45526, 45968, 56032, 69628, 85696, 91052, 91936, 112064, 139256, 182104, 183872, 278512, 295919, 364208, 557024, 591838, 728416, 1114048, 1183676, 1456832, 2367352, 4734704, 9469408, 18938816]

約数ペア:

[(1, 18938816), (2, 9469408), (4, 4734704), (8, 2367352), (13, 1456832), (16, 1183676), (17, 1114048), (26, 728416), (32, 591838), (34, 557024), (52, 364208), (64, 295919), (68, 278512), (103, 183872), (104, 182104), (136, 139256), (169, 112064), (206, 91936), (208, 91052), (221, 85696), (272, 69628), (338, 56032), (412, 45968), (416, 45526), (442, 42848), (544, 34814), (676, 28016), (824, 22984), (832, 22763), (884, 21424), (1088, 17407), (1339, 14144), (1352, 14008), (1648, 11492), (1751, 10816), (1768, 10712), (2678, 7072), (2704, 7004), (2873, 6592), (3296, 5746), (3502, 5408), (3536, 5356)]