19884752

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{179}}^1$

素因数の和:371

約数の個数: 40

約数和(自身を含む): 39774240

約数和(自身を除く): 19889488

約数列:

[1, 2, 4, 8, 16, 53, 106, 131, 179, 212, 262, 358, 424, 524, 716, 848, 1048, 1432, 2096, 2864, 6943, 9487, 13886, 18974, 23449, 27772, 37948, 46898, 55544, 75896, 93796, 111088, 151792, 187592, 375184, 1242797, 2485594, 4971188, 9942376, 19884752]

約数ペア:

[(1, 19884752), (2, 9942376), (4, 4971188), (8, 2485594), (16, 1242797), (53, 375184), (106, 187592), (131, 151792), (179, 111088), (212, 93796), (262, 75896), (358, 55544), (424, 46898), (524, 37948), (716, 27772), (848, 23449), (1048, 18974), (1432, 13886), (2096, 9487), (2864, 6943)]