18945836

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:151

約数の個数: 96

約数和(自身を含む): 44556288

約数和(自身を除く): 25610452

約数列:

[1, 2, 4, 7, 13, 14, 23, 26, 28, 31, 46, 52, 62, 73, 91, 92, 124, 146, 161, 182, 217, 292, 299, 322, 364, 403, 434, 511, 598, 644, 713, 806, 868, 949, 1022, 1196, 1426, 1612, 1679, 1898, 2044, 2093, 2263, 2821, 2852, 3358, 3796, 4186, 4526, 4991, 5642, 6643, 6716, 8372, 9052, 9269, 9982, 11284, 11753, 13286, 15841, 18538, 19964, 21827, 23506, 26572, 29419, 31682, 37076, 43654, 47012, 52049, 58838, 63364, 64883, 87308, 104098, 117676, 129766, 152789, 205933, 208196, 259532, 305578, 364343, 411866, 611156, 676637, 728686, 823732, 1353274, 1457372, 2706548, 4736459, 9472918, 18945836]

約数ペア:

[(1, 18945836), (2, 9472918), (4, 4736459), (7, 2706548), (13, 1457372), (14, 1353274), (23, 823732), (26, 728686), (28, 676637), (31, 611156), (46, 411866), (52, 364343), (62, 305578), (73, 259532), (91, 208196), (92, 205933), (124, 152789), (146, 129766), (161, 117676), (182, 104098), (217, 87308), (292, 64883), (299, 63364), (322, 58838), (364, 52049), (403, 47012), (434, 43654), (511, 37076), (598, 31682), (644, 29419), (713, 26572), (806, 23506), (868, 21827), (949, 19964), (1022, 18538), (1196, 15841), (1426, 13286), (1612, 11753), (1679, 11284), (1898, 9982), (2044, 9269), (2093, 9052), (2263, 8372), (2821, 6716), (2852, 6643), (3358, 5642), (3796, 4991), (4186, 4526)]