17981488

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5179}}^1$

素因数の和:5225

約数の個数: 40

約数和(自身を含む): 41108480

約数和(自身を除く): 23126992

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 5179, 10358, 20716, 36253, 41432, 72506, 82864, 145012, 160549, 290024, 321098, 580048, 642196, 1123843, 1284392, 2247686, 2568784, 4495372, 8990744, 17981488]

約数ペア:

[(1, 17981488), (2, 8990744), (4, 4495372), (7, 2568784), (8, 2247686), (14, 1284392), (16, 1123843), (28, 642196), (31, 580048), (56, 321098), (62, 290024), (112, 160549), (124, 145012), (217, 82864), (248, 72506), (434, 41432), (496, 36253), (868, 20716), (1736, 10358), (3472, 5179)]