19891248

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{251}}^1$

素因数の和:402

約数の個数: 80

約数和(自身を含む): 55996416

約数和(自身を除く): 36105168

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 127, 156, 208, 251, 254, 312, 381, 502, 508, 624, 753, 762, 1004, 1016, 1506, 1524, 1651, 2008, 2032, 3012, 3048, 3263, 3302, 4016, 4953, 6024, 6096, 6526, 6604, 9789, 9906, 12048, 13052, 13208, 19578, 19812, 26104, 26416, 31877, 39156, 39624, 52208, 63754, 78312, 79248, 95631, 127508, 156624, 191262, 255016, 382524, 414401, 510032, 765048, 828802, 1243203, 1530096, 1657604, 2486406, 3315208, 4972812, 6630416, 9945624, 19891248]

約数ペア:

[(1, 19891248), (2, 9945624), (3, 6630416), (4, 4972812), (6, 3315208), (8, 2486406), (12, 1657604), (13, 1530096), (16, 1243203), (24, 828802), (26, 765048), (39, 510032), (48, 414401), (52, 382524), (78, 255016), (104, 191262), (127, 156624), (156, 127508), (208, 95631), (251, 79248), (254, 78312), (312, 63754), (381, 52208), (502, 39624), (508, 39156), (624, 31877), (753, 26416), (762, 26104), (1004, 19812), (1016, 19578), (1506, 13208), (1524, 13052), (1651, 12048), (2008, 9906), (2032, 9789), (3012, 6604), (3048, 6526), (3263, 6096), (3302, 6024), (4016, 4953)]