21498456

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{181}}^1$

素因数の和:305

約数の個数: 96

約数和(自身を含む): 63488880

約数和(自身を除く): 41990424

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 49, 56, 84, 98, 101, 147, 168, 181, 196, 202, 294, 303, 362, 392, 404, 543, 588, 606, 707, 724, 808, 1086, 1176, 1212, 1267, 1414, 1448, 2121, 2172, 2424, 2534, 2828, 3801, 4242, 4344, 4949, 5068, 5656, 7602, 8484, 8869, 9898, 10136, 14847, 15204, 16968, 17738, 18281, 19796, 26607, 29694, 30408, 35476, 36562, 39592, 53214, 54843, 59388, 70952, 73124, 106428, 109686, 118776, 127967, 146248, 212856, 219372, 255934, 383901, 438744, 511868, 767802, 895769, 1023736, 1535604, 1791538, 2687307, 3071208, 3583076, 5374614, 7166152, 10749228, 21498456]

約数ペア:

[(1, 21498456), (2, 10749228), (3, 7166152), (4, 5374614), (6, 3583076), (7, 3071208), (8, 2687307), (12, 1791538), (14, 1535604), (21, 1023736), (24, 895769), (28, 767802), (42, 511868), (49, 438744), (56, 383901), (84, 255934), (98, 219372), (101, 212856), (147, 146248), (168, 127967), (181, 118776), (196, 109686), (202, 106428), (294, 73124), (303, 70952), (362, 59388), (392, 54843), (404, 53214), (543, 39592), (588, 36562), (606, 35476), (707, 30408), (724, 29694), (808, 26607), (1086, 19796), (1176, 18281), (1212, 17738), (1267, 16968), (1414, 15204), (1448, 14847), (2121, 10136), (2172, 9898), (2424, 8869), (2534, 8484), (2828, 7602), (3801, 5656), (4242, 5068), (4344, 4949)]