19977496

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1$

素因数の和:185

約数の個数: 96

約数和(自身を含む): 49124880

約数和(自身を除く): 29147384

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 41, 44, 49, 56, 77, 82, 88, 98, 113, 154, 164, 196, 226, 287, 308, 328, 392, 451, 452, 539, 574, 616, 791, 902, 904, 1078, 1148, 1243, 1582, 1804, 2009, 2156, 2296, 2486, 3157, 3164, 3608, 4018, 4312, 4633, 4972, 5537, 6314, 6328, 8036, 8701, 9266, 9944, 11074, 12628, 16072, 17402, 18532, 22099, 22148, 25256, 32431, 34804, 37064, 44198, 44296, 50963, 60907, 64862, 69608, 88396, 101926, 121814, 129724, 176792, 203852, 227017, 243628, 259448, 356741, 407704, 454034, 487256, 713482, 908068, 1426964, 1816136, 2497187, 2853928, 4994374, 9988748, 19977496]

約数ペア:

[(1, 19977496), (2, 9988748), (4, 4994374), (7, 2853928), (8, 2497187), (11, 1816136), (14, 1426964), (22, 908068), (28, 713482), (41, 487256), (44, 454034), (49, 407704), (56, 356741), (77, 259448), (82, 243628), (88, 227017), (98, 203852), (113, 176792), (154, 129724), (164, 121814), (196, 101926), (226, 88396), (287, 69608), (308, 64862), (328, 60907), (392, 50963), (451, 44296), (452, 44198), (539, 37064), (574, 34804), (616, 32431), (791, 25256), (902, 22148), (904, 22099), (1078, 18532), (1148, 17402), (1243, 16072), (1582, 12628), (1804, 11074), (2009, 9944), (2156, 9266), (2296, 8701), (2486, 8036), (3157, 6328), (3164, 6314), (3608, 5537), (4018, 4972), (4312, 4633)]