18938272

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1123}}^1$

素因数の和:1181

約数の個数: 48

約数和(自身を含む): 40787712

約数和(自身を除く): 21849440

約数列:

[1, 2, 4, 8, 16, 17, 31, 32, 34, 62, 68, 124, 136, 248, 272, 496, 527, 544, 992, 1054, 1123, 2108, 2246, 4216, 4492, 8432, 8984, 16864, 17968, 19091, 34813, 35936, 38182, 69626, 76364, 139252, 152728, 278504, 305456, 557008, 591821, 610912, 1114016, 1183642, 2367284, 4734568, 9469136, 18938272]

約数ペア:

[(1, 18938272), (2, 9469136), (4, 4734568), (8, 2367284), (16, 1183642), (17, 1114016), (31, 610912), (32, 591821), (34, 557008), (62, 305456), (68, 278504), (124, 152728), (136, 139252), (248, 76364), (272, 69626), (496, 38182), (527, 35936), (544, 34813), (992, 19091), (1054, 17968), (1123, 16864), (2108, 8984), (2246, 8432), (4216, 4492)]