21597616

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{293}}^1$

素因数の和:589

約数の個数: 40

約数和(自身を含む): 44622144

約数和(自身を除く): 23024528

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 271, 272, 293, 542, 586, 1084, 1172, 2168, 2344, 4336, 4607, 4688, 4981, 9214, 9962, 18428, 19924, 36856, 39848, 73712, 79403, 79696, 158806, 317612, 635224, 1270448, 1349851, 2699702, 5399404, 10798808, 21597616]

約数ペア:

[(1, 21597616), (2, 10798808), (4, 5399404), (8, 2699702), (16, 1349851), (17, 1270448), (34, 635224), (68, 317612), (136, 158806), (271, 79696), (272, 79403), (293, 73712), (542, 39848), (586, 36856), (1084, 19924), (1172, 18428), (2168, 9962), (2344, 9214), (4336, 4981), (4607, 4688)]