20974096

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:224

約数の個数: 80

約数和(自身を含む): 48746880

約数和(自身を除く): 27772784

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 89, 103, 104, 143, 176, 178, 206, 208, 286, 356, 412, 572, 712, 824, 979, 1133, 1144, 1157, 1339, 1424, 1648, 1958, 2266, 2288, 2314, 2678, 3916, 4532, 4628, 5356, 7832, 9064, 9167, 9256, 10712, 12727, 14729, 15664, 18128, 18334, 18512, 21424, 25454, 29458, 36668, 50908, 58916, 73336, 100837, 101816, 117832, 119171, 146672, 201674, 203632, 235664, 238342, 403348, 476684, 806696, 953368, 1310881, 1613392, 1906736, 2621762, 5243524, 10487048, 20974096]

約数ペア:

[(1, 20974096), (2, 10487048), (4, 5243524), (8, 2621762), (11, 1906736), (13, 1613392), (16, 1310881), (22, 953368), (26, 806696), (44, 476684), (52, 403348), (88, 238342), (89, 235664), (103, 203632), (104, 201674), (143, 146672), (176, 119171), (178, 117832), (206, 101816), (208, 100837), (286, 73336), (356, 58916), (412, 50908), (572, 36668), (712, 29458), (824, 25454), (979, 21424), (1133, 18512), (1144, 18334), (1157, 18128), (1339, 15664), (1424, 14729), (1648, 12727), (1958, 10712), (2266, 9256), (2288, 9167), (2314, 9064), (2678, 7832), (3916, 5356), (4532, 4628)]