19988983521

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{179}}^1\times {\mathrm{24473}}^1$

素因数の和:24687

約数の個数: 48

約数和(自身を含む): 32246942400

約数和(自身を除く): 12257958879

約数列:

[1, 3, 9, 13, 27, 39, 117, 169, 179, 351, 507, 537, 1521, 1611, 2327, 4563, 4833, 6981, 20943, 24473, 30251, 62829, 73419, 90753, 220257, 272259, 318149, 660771, 816777, 954447, 2863341, 4135937, 4380667, 8590023, 12407811, 13142001, 37223433, 39426003, 56948671, 111670299, 118278009, 170846013, 512538039, 740332723, 1537614117, 2220998169, 6662994507, 19988983521]

約数ペア:

[(1, 19988983521), (3, 6662994507), (9, 2220998169), (13, 1537614117), (27, 740332723), (39, 512538039), (117, 170846013), (169, 118278009), (179, 111670299), (351, 56948671), (507, 39426003), (537, 37223433), (1521, 13142001), (1611, 12407811), (2327, 8590023), (4563, 4380667), (4833, 4135937), (6981, 2863341), (20943, 954447), (24473, 816777), (30251, 660771), (62829, 318149), (73419, 272259), (90753, 220257)]