19724368

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{179}}^1$

素因数の和:355

約数の個数: 40

約数和(自身を含む): 39372480

約数和(自身を除く): 19648112

約数列:

[1, 2, 4, 8, 16, 71, 97, 142, 179, 194, 284, 358, 388, 568, 716, 776, 1136, 1432, 1552, 2864, 6887, 12709, 13774, 17363, 25418, 27548, 34726, 50836, 55096, 69452, 101672, 110192, 138904, 203344, 277808, 1232773, 2465546, 4931092, 9862184, 19724368]

約数ペア:

[(1, 19724368), (2, 9862184), (4, 4931092), (8, 2465546), (16, 1232773), (71, 277808), (97, 203344), (142, 138904), (179, 110192), (194, 101672), (284, 69452), (358, 55096), (388, 50836), (568, 34726), (716, 27548), (776, 25418), (1136, 17363), (1432, 13774), (1552, 12709), (2864, 6887)]