19687976

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1031}}^1$

素因数の和:1086

約数の個数: 64

約数和(自身を含む): 47554560

約数和(自身を除く): 27866584

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 31, 44, 56, 62, 77, 88, 124, 154, 217, 248, 308, 341, 434, 616, 682, 868, 1031, 1364, 1736, 2062, 2387, 2728, 4124, 4774, 7217, 8248, 9548, 11341, 14434, 19096, 22682, 28868, 31961, 45364, 57736, 63922, 79387, 90728, 127844, 158774, 223727, 255688, 317548, 351571, 447454, 635096, 703142, 894908, 1406284, 1789816, 2460997, 2812568, 4921994, 9843988, 19687976]

約数ペア:

[(1, 19687976), (2, 9843988), (4, 4921994), (7, 2812568), (8, 2460997), (11, 1789816), (14, 1406284), (22, 894908), (28, 703142), (31, 635096), (44, 447454), (56, 351571), (62, 317548), (77, 255688), (88, 223727), (124, 158774), (154, 127844), (217, 90728), (248, 79387), (308, 63922), (341, 57736), (434, 45364), (616, 31961), (682, 28868), (868, 22682), (1031, 19096), (1364, 14434), (1736, 11341), (2062, 9548), (2387, 8248), (2728, 7217), (4124, 4774)]