18658528

素因数分解:

$2^5\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2687}}^1$

素因数の和:2735

約数の個数: 48

約数和(自身を含む): 43352064

約数和(自身を除く): 24693536

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 112, 124, 217, 224, 248, 434, 496, 868, 992, 1736, 2687, 3472, 5374, 6944, 10748, 18809, 21496, 37618, 42992, 75236, 83297, 85984, 150472, 166594, 300944, 333188, 583079, 601888, 666376, 1166158, 1332752, 2332316, 2665504, 4664632, 9329264, 18658528]

約数ペア:

[(1, 18658528), (2, 9329264), (4, 4664632), (7, 2665504), (8, 2332316), (14, 1332752), (16, 1166158), (28, 666376), (31, 601888), (32, 583079), (56, 333188), (62, 300944), (112, 166594), (124, 150472), (217, 85984), (224, 83297), (248, 75236), (434, 42992), (496, 37618), (868, 21496), (992, 18809), (1736, 10748), (2687, 6944), (3472, 5374)]