19453028

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 40449024

約数和(自身を除く): 20995996

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 107, 151, 172, 214, 301, 302, 428, 602, 604, 749, 1057, 1204, 1498, 2114, 2996, 4228, 4601, 6493, 9202, 12986, 16157, 18404, 25972, 32207, 32314, 45451, 64414, 64628, 90902, 113099, 128828, 181804, 226198, 452396, 694751, 1389502, 2779004, 4863257, 9726514, 19453028]

約数ペア:

[(1, 19453028), (2, 9726514), (4, 4863257), (7, 2779004), (14, 1389502), (28, 694751), (43, 452396), (86, 226198), (107, 181804), (151, 128828), (172, 113099), (214, 90902), (301, 64628), (302, 64414), (428, 45451), (602, 32314), (604, 32207), (749, 25972), (1057, 18404), (1204, 16157), (1498, 12986), (2114, 9202), (2996, 6493), (4228, 4601)]