19404736

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{281}}^1$

素因数の和:389

約数の個数: 56

約数和(自身を含む): 42117264

約数和(自身を除く): 22712528

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 83, 104, 166, 208, 281, 332, 416, 562, 664, 832, 1079, 1124, 1328, 2158, 2248, 2656, 3653, 4316, 4496, 5312, 7306, 8632, 8992, 14612, 17264, 17984, 23323, 29224, 34528, 46646, 58448, 69056, 93292, 116896, 186584, 233792, 303199, 373168, 606398, 746336, 1212796, 1492672, 2425592, 4851184, 9702368, 19404736]

約数ペア:

[(1, 19404736), (2, 9702368), (4, 4851184), (8, 2425592), (13, 1492672), (16, 1212796), (26, 746336), (32, 606398), (52, 373168), (64, 303199), (83, 233792), (104, 186584), (166, 116896), (208, 93292), (281, 69056), (332, 58448), (416, 46646), (562, 34528), (664, 29224), (832, 23323), (1079, 17984), (1124, 17264), (1328, 14612), (2158, 8992), (2248, 8632), (2656, 7306), (3653, 5312), (4316, 4496)]