20737816

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:272

約数の個数: 64

約数和(自身を含む): 45504000

約数和(自身を除く): 24766184

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 79, 88, 152, 157, 158, 209, 314, 316, 418, 628, 632, 836, 869, 1256, 1501, 1672, 1727, 1738, 2983, 3002, 3454, 3476, 5966, 6004, 6908, 6952, 11932, 12008, 12403, 13816, 16511, 23864, 24806, 32813, 33022, 49612, 65626, 66044, 99224, 131252, 132088, 136433, 235657, 262504, 272866, 471314, 545732, 942628, 1091464, 1885256, 2592227, 5184454, 10368908, 20737816]

約数ペア:

[(1, 20737816), (2, 10368908), (4, 5184454), (8, 2592227), (11, 1885256), (19, 1091464), (22, 942628), (38, 545732), (44, 471314), (76, 272866), (79, 262504), (88, 235657), (152, 136433), (157, 132088), (158, 131252), (209, 99224), (314, 66044), (316, 65626), (418, 49612), (628, 33022), (632, 32813), (836, 24806), (869, 23864), (1256, 16511), (1501, 13816), (1672, 12403), (1727, 12008), (1738, 11932), (2983, 6952), (3002, 6908), (3454, 6004), (3476, 5966)]