21189867010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1\times {\mathrm{5897}}^1$

素因数の和:6259

約数の個数: 64

約数和(自身を含む): 41592507264

約数和(自身を除く): 20402640254

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 131, 211, 262, 422, 655, 1055, 1310, 1703, 2110, 2743, 3406, 5486, 5897, 8515, 11794, 13715, 17030, 27430, 27641, 29485, 55282, 58970, 76661, 138205, 153322, 276410, 359333, 383305, 718666, 766610, 772507, 1244267, 1545014, 1796665, 2488534, 3593330, 3862535, 6221335, 7725070, 10042591, 12442670, 16175471, 20085182, 32350942, 50212955, 80877355, 100425910, 161754710, 162998977, 325997954, 814994885, 1629989770, 2118986701, 4237973402, 10594933505, 21189867010]

約数ペア:

[(1, 21189867010), (2, 10594933505), (5, 4237973402), (10, 2118986701), (13, 1629989770), (26, 814994885), (65, 325997954), (130, 162998977), (131, 161754710), (211, 100425910), (262, 80877355), (422, 50212955), (655, 32350942), (1055, 20085182), (1310, 16175471), (1703, 12442670), (2110, 10042591), (2743, 7725070), (3406, 6221335), (5486, 3862535), (5897, 3593330), (8515, 2488534), (11794, 1796665), (13715, 1545014), (17030, 1244267), (27430, 772507), (27641, 766610), (29485, 718666), (55282, 383305), (58970, 359333), (76661, 276410), (138205, 153322)]