21801276

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{727}}^1$

素因数の和:768

約数の個数: 108

約数和(自身を含む): 67970448

約数和(自身を除く): 46169172

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 28, 34, 36, 42, 49, 51, 63, 68, 84, 98, 102, 119, 126, 147, 153, 196, 204, 238, 252, 294, 306, 357, 441, 476, 588, 612, 714, 727, 833, 882, 1071, 1428, 1454, 1666, 1764, 2142, 2181, 2499, 2908, 3332, 4284, 4362, 4998, 5089, 6543, 7497, 8724, 9996, 10178, 12359, 13086, 14994, 15267, 20356, 24718, 26172, 29988, 30534, 35623, 37077, 45801, 49436, 61068, 71246, 74154, 86513, 91602, 106869, 111231, 142492, 148308, 173026, 183204, 213738, 222462, 259539, 320607, 346052, 427476, 444924, 519078, 605591, 641214, 778617, 1038156, 1211182, 1282428, 1557234, 1816773, 2422364, 3114468, 3633546, 5450319, 7267092, 10900638, 21801276]

約数ペア:

[(1, 21801276), (2, 10900638), (3, 7267092), (4, 5450319), (6, 3633546), (7, 3114468), (9, 2422364), (12, 1816773), (14, 1557234), (17, 1282428), (18, 1211182), (21, 1038156), (28, 778617), (34, 641214), (36, 605591), (42, 519078), (49, 444924), (51, 427476), (63, 346052), (68, 320607), (84, 259539), (98, 222462), (102, 213738), (119, 183204), (126, 173026), (147, 148308), (153, 142492), (196, 111231), (204, 106869), (238, 91602), (252, 86513), (294, 74154), (306, 71246), (357, 61068), (441, 49436), (476, 45801), (588, 37077), (612, 35623), (714, 30534), (727, 29988), (833, 26172), (882, 24718), (1071, 20356), (1428, 15267), (1454, 14994), (1666, 13086), (1764, 12359), (2142, 10178), (2181, 9996), (2499, 8724), (2908, 7497), (3332, 6543), (4284, 5089), (4362, 4998)]