20178631791

素因数分解:

$3^6\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{197}}^1$

素因数の和:428

約数の個数: 112

約数和(自身を含む): 32721796800

約数和(自身を除く): 12543165009

約数列:

[1, 3, 9, 23, 27, 41, 69, 81, 123, 149, 197, 207, 243, 369, 447, 591, 621, 729, 943, 1107, 1341, 1773, 1863, 2829, 3321, 3427, 4023, 4531, 5319, 5589, 6109, 8077, 8487, 9963, 10281, 12069, 13593, 15957, 16767, 18327, 24231, 25461, 29353, 29889, 30843, 36207, 40779, 47871, 54981, 72693, 76383, 88059, 92529, 108621, 122337, 140507, 143613, 164943, 185771, 218079, 229149, 264177, 277587, 367011, 421521, 494829, 557313, 654237, 675119, 687447, 792531, 832761, 1101033, 1203473, 1264563, 1484487, 1671939, 1962711, 2025357, 2377593, 2498283, 3303099, 3610419, 3793689, 4453461, 5015817, 5888133, 6076071, 7132779, 10831257, 11381067, 15047451, 18228213, 21398337, 27679879, 32493771, 34143201, 45142353, 54684639, 83039637, 97481313, 102429603, 135427059, 164053917, 249118911, 292443939, 492161751, 747356733, 877331817, 2242070199, 6726210597, 20178631791]

約数ペア:

[(1, 20178631791), (3, 6726210597), (9, 2242070199), (23, 877331817), (27, 747356733), (41, 492161751), (69, 292443939), (81, 249118911), (123, 164053917), (149, 135427059), (197, 102429603), (207, 97481313), (243, 83039637), (369, 54684639), (447, 45142353), (591, 34143201), (621, 32493771), (729, 27679879), (943, 21398337), (1107, 18228213), (1341, 15047451), (1773, 11381067), (1863, 10831257), (2829, 7132779), (3321, 6076071), (3427, 5888133), (4023, 5015817), (4531, 4453461), (5319, 3793689), (5589, 3610419), (6109, 3303099), (8077, 2498283), (8487, 2377593), (9963, 2025357), (10281, 1962711), (12069, 1671939), (13593, 1484487), (15957, 1264563), (16767, 1203473), (18327, 1101033), (24231, 832761), (25461, 792531), (29353, 687447), (29889, 675119), (30843, 654237), (36207, 557313), (40779, 494829), (47871, 421521), (54981, 367011), (72693, 277587), (76383, 264177), (88059, 229149), (92529, 218079), (108621, 185771), (122337, 164943), (140507, 143613)]