21111660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6173}}^1$

素因数の和:6207

約数の個数: 72

約数和(自身を含む): 67420080

約数和(自身を除く): 46308420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 6173, 12346, 18519, 24692, 30865, 37038, 55557, 61730, 74076, 92595, 111114, 117287, 123460, 185190, 222228, 234574, 277785, 351861, 370380, 469148, 555570, 586435, 703722, 1055583, 1111140, 1172870, 1407444, 1759305, 2111166, 2345740, 3518610, 4222332, 5277915, 7037220, 10555830, 21111660]

約数ペア:

[(1, 21111660), (2, 10555830), (3, 7037220), (4, 5277915), (5, 4222332), (6, 3518610), (9, 2345740), (10, 2111166), (12, 1759305), (15, 1407444), (18, 1172870), (19, 1111140), (20, 1055583), (30, 703722), (36, 586435), (38, 555570), (45, 469148), (57, 370380), (60, 351861), (76, 277785), (90, 234574), (95, 222228), (114, 185190), (171, 123460), (180, 117287), (190, 111114), (228, 92595), (285, 74076), (342, 61730), (380, 55557), (570, 37038), (684, 30865), (855, 24692), (1140, 18519), (1710, 12346), (3420, 6173)]