18721811808

素因数分解:

$2^5\times 3^2\times 7^2\times {\mathrm{1326659}}^1$

素因数の和:1326689

約数の個数: 108

約数和(自身を含む): 61932468780

約数和(自身を除く): 43210656972

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 49, 56, 63, 72, 84, 96, 98, 112, 126, 144, 147, 168, 196, 224, 252, 288, 294, 336, 392, 441, 504, 588, 672, 784, 882, 1008, 1176, 1568, 1764, 2016, 2352, 3528, 4704, 7056, 14112, 1326659, 2653318, 3979977, 5306636, 7959954, 9286613, 10613272, 11939931, 15919908, 18573226, 21226544, 23879862, 27859839, 31839816, 37146452, 42453088, 47759724, 55719678, 63679632, 65006291, 74292904, 83579517, 95519448, 111439356, 127359264, 130012582, 148585808, 167159034, 191038896, 195018873, 222878712, 260025164, 297171616, 334318068, 382077792, 390037746, 445757424, 520050328, 585056619, 668636136, 780075492, 891514848, 1040100656, 1170113238, 1337272272, 1560150984, 2080201312, 2340226476, 2674544544, 3120301968, 4680452952, 6240603936, 9360905904, 18721811808]

約数ペア:

[(1, 18721811808), (2, 9360905904), (3, 6240603936), (4, 4680452952), (6, 3120301968), (7, 2674544544), (8, 2340226476), (9, 2080201312), (12, 1560150984), (14, 1337272272), (16, 1170113238), (18, 1040100656), (21, 891514848), (24, 780075492), (28, 668636136), (32, 585056619), (36, 520050328), (42, 445757424), (48, 390037746), (49, 382077792), (56, 334318068), (63, 297171616), (72, 260025164), (84, 222878712), (96, 195018873), (98, 191038896), (112, 167159034), (126, 148585808), (144, 130012582), (147, 127359264), (168, 111439356), (196, 95519448), (224, 83579517), (252, 74292904), (288, 65006291), (294, 63679632), (336, 55719678), (392, 47759724), (441, 42453088), (504, 37146452), (588, 31839816), (672, 27859839), (784, 23879862), (882, 21226544), (1008, 18573226), (1176, 15919908), (1568, 11939931), (1764, 10613272), (2016, 9286613), (2352, 7959954), (3528, 5306636), (4704, 3979977), (7056, 2653318), (14112, 1326659)]