20421044

素因数分解:

$2^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{2423}}^1$

素因数の和:2484

約数の個数: 36

約数和(自身を含む): 42555744

約数和(自身を除く): 22134700

約数列:

[1, 2, 4, 7, 14, 28, 43, 49, 86, 98, 172, 196, 301, 602, 1204, 2107, 2423, 4214, 4846, 8428, 9692, 16961, 33922, 67844, 104189, 118727, 208378, 237454, 416756, 474908, 729323, 1458646, 2917292, 5105261, 10210522, 20421044]

約数ペア:

[(1, 20421044), (2, 10210522), (4, 5105261), (7, 2917292), (14, 1458646), (28, 729323), (43, 474908), (49, 416756), (86, 237454), (98, 208378), (172, 118727), (196, 104189), (301, 67844), (602, 33922), (1204, 16961), (2107, 9692), (2423, 8428), (4214, 4846)]