21202016

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:148

約数の個数: 96

約数和(自身を含む): 49351680

約数和(自身を除く): 28149664

約数列:

[1, 2, 4, 8, 11, 16, 22, 29, 31, 32, 44, 58, 62, 67, 88, 116, 124, 134, 176, 232, 248, 268, 319, 341, 352, 464, 496, 536, 638, 682, 737, 899, 928, 992, 1072, 1276, 1364, 1474, 1798, 1943, 2077, 2144, 2552, 2728, 2948, 3596, 3886, 4154, 5104, 5456, 5896, 7192, 7772, 8308, 9889, 10208, 10912, 11792, 14384, 15544, 16616, 19778, 21373, 22847, 23584, 28768, 31088, 33232, 39556, 42746, 45694, 60233, 62176, 66464, 79112, 85492, 91388, 120466, 158224, 170984, 182776, 240932, 316448, 341968, 365552, 481864, 662563, 683936, 731104, 963728, 1325126, 1927456, 2650252, 5300504, 10601008, 21202016]

約数ペア:

[(1, 21202016), (2, 10601008), (4, 5300504), (8, 2650252), (11, 1927456), (16, 1325126), (22, 963728), (29, 731104), (31, 683936), (32, 662563), (44, 481864), (58, 365552), (62, 341968), (67, 316448), (88, 240932), (116, 182776), (124, 170984), (134, 158224), (176, 120466), (232, 91388), (248, 85492), (268, 79112), (319, 66464), (341, 62176), (352, 60233), (464, 45694), (496, 42746), (536, 39556), (638, 33232), (682, 31088), (737, 28768), (899, 23584), (928, 22847), (992, 21373), (1072, 19778), (1276, 16616), (1364, 15544), (1474, 14384), (1798, 11792), (1943, 10912), (2077, 10208), (2144, 9889), (2552, 8308), (2728, 7772), (2948, 7192), (3596, 5896), (3886, 5456), (4154, 5104)]