16991968

素因数分解:

$2^5\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2447}}^1$

素因数の和:2495

約数の個数: 48

約数和(自身を含む): 39481344

約数和(自身を除く): 22489376

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 112, 124, 217, 224, 248, 434, 496, 868, 992, 1736, 2447, 3472, 4894, 6944, 9788, 17129, 19576, 34258, 39152, 68516, 75857, 78304, 137032, 151714, 274064, 303428, 530999, 548128, 606856, 1061998, 1213712, 2123996, 2427424, 4247992, 8495984, 16991968]

約数ペア:

[(1, 16991968), (2, 8495984), (4, 4247992), (7, 2427424), (8, 2123996), (14, 1213712), (16, 1061998), (28, 606856), (31, 548128), (32, 530999), (56, 303428), (62, 274064), (112, 151714), (124, 137032), (217, 78304), (224, 75857), (248, 68516), (434, 39152), (496, 34258), (868, 19576), (992, 17129), (1736, 9788), (2447, 6944), (3472, 4894)]