21860784

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{373}}^1$

素因数の和:435

約数の個数: 120

約数和(自身を含む): 68729232

約数和(自身を除く): 46868448

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 37, 44, 48, 66, 72, 74, 88, 99, 111, 132, 144, 148, 176, 198, 222, 264, 296, 333, 373, 396, 407, 444, 528, 592, 666, 746, 792, 814, 888, 1119, 1221, 1332, 1492, 1584, 1628, 1776, 2238, 2442, 2664, 2984, 3256, 3357, 3663, 4103, 4476, 4884, 5328, 5968, 6512, 6714, 7326, 8206, 8952, 9768, 12309, 13428, 13801, 14652, 16412, 17904, 19536, 24618, 26856, 27602, 29304, 32824, 36927, 41403, 49236, 53712, 55204, 58608, 65648, 73854, 82806, 98472, 110408, 124209, 147708, 151811, 165612, 196944, 220816, 248418, 295416, 303622, 331224, 455433, 496836, 590832, 607244, 662448, 910866, 993672, 1214488, 1366299, 1821732, 1987344, 2428976, 2732598, 3643464, 5465196, 7286928, 10930392, 21860784]

約数ペア:

[(1, 21860784), (2, 10930392), (3, 7286928), (4, 5465196), (6, 3643464), (8, 2732598), (9, 2428976), (11, 1987344), (12, 1821732), (16, 1366299), (18, 1214488), (22, 993672), (24, 910866), (33, 662448), (36, 607244), (37, 590832), (44, 496836), (48, 455433), (66, 331224), (72, 303622), (74, 295416), (88, 248418), (99, 220816), (111, 196944), (132, 165612), (144, 151811), (148, 147708), (176, 124209), (198, 110408), (222, 98472), (264, 82806), (296, 73854), (333, 65648), (373, 58608), (396, 55204), (407, 53712), (444, 49236), (528, 41403), (592, 36927), (666, 32824), (746, 29304), (792, 27602), (814, 26856), (888, 24618), (1119, 19536), (1221, 17904), (1332, 16412), (1492, 14652), (1584, 13801), (1628, 13428), (1776, 12309), (2238, 9768), (2442, 8952), (2664, 8206), (2984, 7326), (3256, 6714), (3357, 6512), (3663, 5968), (4103, 5328), (4476, 4884)]