20803973169

素因数分解:

$3^1\times 7^3\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{2887}}^1$

素因数の和:3107

約数の個数: 64

約数和(自身を含む): 33269760000

約数和(自身を除く): 12465786831

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 149, 329, 343, 447, 987, 1029, 1043, 2303, 2887, 3129, 6909, 7003, 7301, 8661, 16121, 20209, 21009, 21903, 48363, 49021, 51107, 60627, 135689, 141463, 147063, 153321, 343147, 407067, 424389, 430163, 949823, 990241, 1029441, 1290489, 2402029, 2849469, 2970723, 3011141, 6648761, 7206087, 9033423, 19946283, 20217661, 21077987, 46541327, 60652983, 63233961, 139623981, 141523627, 147545909, 424570881, 442637727, 990665389, 2971996167, 6934657723, 20803973169]

約数ペア:

[(1, 20803973169), (3, 6934657723), (7, 2971996167), (21, 990665389), (47, 442637727), (49, 424570881), (141, 147545909), (147, 141523627), (149, 139623981), (329, 63233961), (343, 60652983), (447, 46541327), (987, 21077987), (1029, 20217661), (1043, 19946283), (2303, 9033423), (2887, 7206087), (3129, 6648761), (6909, 3011141), (7003, 2970723), (7301, 2849469), (8661, 2402029), (16121, 1290489), (20209, 1029441), (21009, 990241), (21903, 949823), (48363, 430163), (49021, 424389), (51107, 407067), (60627, 343147), (135689, 153321), (141463, 147063)]