21271374

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^2$

素因数の和:146

約数の個数: 72

約数和(自身を含む): 51069720

約数和(自身を除く): 29798346

約数列:

[1, 2, 3, 6, 9, 18, 19, 37, 38, 41, 57, 74, 82, 111, 114, 123, 171, 222, 246, 333, 342, 369, 666, 703, 738, 779, 1406, 1517, 1558, 1681, 2109, 2337, 3034, 3362, 4218, 4551, 4674, 5043, 6327, 7011, 9102, 10086, 12654, 13653, 14022, 15129, 27306, 28823, 30258, 31939, 57646, 62197, 63878, 86469, 95817, 124394, 172938, 186591, 191634, 259407, 287451, 373182, 518814, 559773, 574902, 1119546, 1181743, 2363486, 3545229, 7090458, 10635687, 21271374]

約数ペア:

[(1, 21271374), (2, 10635687), (3, 7090458), (6, 3545229), (9, 2363486), (18, 1181743), (19, 1119546), (37, 574902), (38, 559773), (41, 518814), (57, 373182), (74, 287451), (82, 259407), (111, 191634), (114, 186591), (123, 172938), (171, 124394), (222, 95817), (246, 86469), (333, 63878), (342, 62197), (369, 57646), (666, 31939), (703, 30258), (738, 28823), (779, 27306), (1406, 15129), (1517, 14022), (1558, 13653), (1681, 12654), (2109, 10086), (2337, 9102), (3034, 7011), (3362, 6327), (4218, 5043), (4551, 4674)]