16805728

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:371

約数の個数: 48

約数和(自身を含む): 35259840

約数和(自身を除く): 18454112

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 131, 152, 211, 262, 304, 422, 524, 608, 844, 1048, 1688, 2096, 2489, 3376, 4009, 4192, 4978, 6752, 8018, 9956, 16036, 19912, 27641, 32072, 39824, 55282, 64144, 79648, 110564, 128288, 221128, 442256, 525179, 884512, 1050358, 2100716, 4201432, 8402864, 16805728]

約数ペア:

[(1, 16805728), (2, 8402864), (4, 4201432), (8, 2100716), (16, 1050358), (19, 884512), (32, 525179), (38, 442256), (76, 221128), (131, 128288), (152, 110564), (211, 79648), (262, 64144), (304, 55282), (422, 39824), (524, 32072), (608, 27641), (844, 19912), (1048, 16036), (1688, 9956), (2096, 8018), (2489, 6752), (3376, 4978), (4009, 4192)]