20175099987

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{881}}^1\times {\mathrm{1213}}^1$

素因数の和:2164

約数の個数: 64

約数和(自身を含む): 32893378560

約数和(自身を除く): 12718278573

約数列:

[1, 3, 7, 21, 29, 31, 87, 93, 203, 217, 609, 651, 881, 899, 1213, 2643, 2697, 3639, 6167, 6293, 8491, 18501, 18879, 25473, 25549, 27311, 35177, 37603, 76647, 81933, 105531, 112809, 178843, 191177, 246239, 263221, 536529, 573531, 738717, 789663, 792019, 1068653, 1090487, 2376057, 3205959, 3271461, 5544133, 7480571, 7633409, 16632399, 22441713, 22900227, 30990937, 33128243, 92972811, 99384729, 216936559, 231897701, 650809677, 695693103, 960719047, 2882157141, 6725033329, 20175099987]

約数ペア:

[(1, 20175099987), (3, 6725033329), (7, 2882157141), (21, 960719047), (29, 695693103), (31, 650809677), (87, 231897701), (93, 216936559), (203, 99384729), (217, 92972811), (609, 33128243), (651, 30990937), (881, 22900227), (899, 22441713), (1213, 16632399), (2643, 7633409), (2697, 7480571), (3639, 5544133), (6167, 3271461), (6293, 3205959), (8491, 2376057), (18501, 1090487), (18879, 1068653), (25473, 792019), (25549, 789663), (27311, 738717), (35177, 573531), (37603, 536529), (76647, 263221), (81933, 246239), (105531, 191177), (112809, 178843)]