2017421973

素因数分解:

$3^2\times 7^2\times {\mathrm{79}}^2\times {\mathrm{733}}^1$

素因数の和:911

約数の個数: 54

約数和(自身を含む): 3437953974

約数和(自身を除く): 1420532001

約数列:

[1, 3, 7, 9, 21, 49, 63, 79, 147, 237, 441, 553, 711, 733, 1659, 2199, 3871, 4977, 5131, 6241, 6597, 11613, 15393, 18723, 34839, 35917, 43687, 46179, 56169, 57907, 107751, 131061, 173721, 305809, 323253, 393183, 405349, 521163, 917427, 1216047, 2752281, 2837443, 3648141, 4574653, 8512329, 13723959, 25536987, 32022571, 41171877, 96067713, 224157997, 288203139, 672473991, 2017421973]

約数ペア:

[(1, 2017421973), (3, 672473991), (7, 288203139), (9, 224157997), (21, 96067713), (49, 41171877), (63, 32022571), (79, 25536987), (147, 13723959), (237, 8512329), (441, 4574653), (553, 3648141), (711, 2837443), (733, 2752281), (1659, 1216047), (2199, 917427), (3871, 521163), (4977, 405349), (5131, 393183), (6241, 323253), (6597, 305809), (11613, 173721), (15393, 131061), (18723, 107751), (34839, 57907), (35917, 56169), (43687, 46179)]