19128512

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{277}}^1$

素因数の和:385

約数の個数: 56

約数和(自身を含む): 41519856

約数和(自身を除く): 22391344

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 83, 104, 166, 208, 277, 332, 416, 554, 664, 832, 1079, 1108, 1328, 2158, 2216, 2656, 3601, 4316, 4432, 5312, 7202, 8632, 8864, 14404, 17264, 17728, 22991, 28808, 34528, 45982, 57616, 69056, 91964, 115232, 183928, 230464, 298883, 367856, 597766, 735712, 1195532, 1471424, 2391064, 4782128, 9564256, 19128512]

約数ペア:

[(1, 19128512), (2, 9564256), (4, 4782128), (8, 2391064), (13, 1471424), (16, 1195532), (26, 735712), (32, 597766), (52, 367856), (64, 298883), (83, 230464), (104, 183928), (166, 115232), (208, 91964), (277, 69056), (332, 57616), (416, 45982), (554, 34528), (664, 28808), (832, 22991), (1079, 17728), (1108, 17264), (1328, 14404), (2158, 8864), (2216, 8632), (2656, 7202), (3601, 5312), (4316, 4432)]