21761992

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{181}}^1$

素因数の和:326

約数の個数: 64

約数和(自身を含む): 49795200

約数和(自身を除く): 28033208

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 113, 133, 152, 181, 226, 266, 362, 452, 532, 724, 791, 904, 1064, 1267, 1448, 1582, 2147, 2534, 3164, 3439, 4294, 5068, 6328, 6878, 8588, 10136, 13756, 15029, 17176, 20453, 24073, 27512, 30058, 40906, 48146, 60116, 81812, 96292, 120232, 143171, 163624, 192584, 286342, 388607, 572684, 777214, 1145368, 1554428, 2720249, 3108856, 5440498, 10880996, 21761992]

約数ペア:

[(1, 21761992), (2, 10880996), (4, 5440498), (7, 3108856), (8, 2720249), (14, 1554428), (19, 1145368), (28, 777214), (38, 572684), (56, 388607), (76, 286342), (113, 192584), (133, 163624), (152, 143171), (181, 120232), (226, 96292), (266, 81812), (362, 60116), (452, 48146), (532, 40906), (724, 30058), (791, 27512), (904, 24073), (1064, 20453), (1267, 17176), (1448, 15029), (1582, 13756), (2147, 10136), (2534, 8588), (3164, 6878), (3439, 6328), (4294, 5068)]