19989996

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{9857}}^1$

素因数の和:9890

約数の個数: 36

約数和(自身を含む): 50512392

約数和(自身を除く): 30522396

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 169, 338, 507, 676, 1014, 2028, 9857, 19714, 29571, 39428, 59142, 118284, 128141, 256282, 384423, 512564, 768846, 1537692, 1665833, 3331666, 4997499, 6663332, 9994998, 19989996]

約数ペア:

[(1, 19989996), (2, 9994998), (3, 6663332), (4, 4997499), (6, 3331666), (12, 1665833), (13, 1537692), (26, 768846), (39, 512564), (52, 384423), (78, 256282), (156, 128141), (169, 118284), (338, 59142), (507, 39428), (676, 29571), (1014, 19714), (2028, 9857)]