19816288

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{499}}^1$

素因数の和:599

約数の個数: 48

約数和(自身を含む): 41958000

約数和(自身を除く): 22141712

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 73, 136, 146, 272, 292, 499, 544, 584, 998, 1168, 1241, 1996, 2336, 2482, 3992, 4964, 7984, 8483, 9928, 15968, 16966, 19856, 33932, 36427, 39712, 67864, 72854, 135728, 145708, 271456, 291416, 582832, 619259, 1165664, 1238518, 2477036, 4954072, 9908144, 19816288]

約数ペア:

[(1, 19816288), (2, 9908144), (4, 4954072), (8, 2477036), (16, 1238518), (17, 1165664), (32, 619259), (34, 582832), (68, 291416), (73, 271456), (136, 145708), (146, 135728), (272, 72854), (292, 67864), (499, 39712), (544, 36427), (584, 33932), (998, 19856), (1168, 16966), (1241, 15968), (1996, 9928), (2336, 8483), (2482, 7984), (3992, 4964)]