21617250

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:117

約数の個数: 128

約数和(自身を含む): 59754240

約数和(自身を除く): 38136990

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 25, 30, 37, 38, 41, 50, 57, 74, 75, 82, 95, 111, 114, 123, 125, 150, 185, 190, 205, 222, 246, 250, 285, 370, 375, 410, 475, 555, 570, 615, 703, 750, 779, 925, 950, 1025, 1110, 1230, 1406, 1425, 1517, 1558, 1850, 2050, 2109, 2337, 2375, 2775, 2850, 3034, 3075, 3515, 3895, 4218, 4551, 4625, 4674, 4750, 5125, 5550, 6150, 7030, 7125, 7585, 7790, 9102, 9250, 10250, 10545, 11685, 13875, 14250, 15170, 15375, 17575, 19475, 21090, 22755, 23370, 27750, 28823, 30750, 35150, 37925, 38950, 45510, 52725, 57646, 58425, 75850, 86469, 87875, 97375, 105450, 113775, 116850, 144115, 172938, 175750, 189625, 194750, 227550, 263625, 288230, 292125, 379250, 432345, 527250, 568875, 584250, 720575, 864690, 1137750, 1441150, 2161725, 3602875, 4323450, 7205750, 10808625, 21617250]

約数ペア:

[(1, 21617250), (2, 10808625), (3, 7205750), (5, 4323450), (6, 3602875), (10, 2161725), (15, 1441150), (19, 1137750), (25, 864690), (30, 720575), (37, 584250), (38, 568875), (41, 527250), (50, 432345), (57, 379250), (74, 292125), (75, 288230), (82, 263625), (95, 227550), (111, 194750), (114, 189625), (123, 175750), (125, 172938), (150, 144115), (185, 116850), (190, 113775), (205, 105450), (222, 97375), (246, 87875), (250, 86469), (285, 75850), (370, 58425), (375, 57646), (410, 52725), (475, 45510), (555, 38950), (570, 37925), (615, 35150), (703, 30750), (750, 28823), (779, 27750), (925, 23370), (950, 22755), (1025, 21090), (1110, 19475), (1230, 17575), (1406, 15375), (1425, 15170), (1517, 14250), (1558, 13875), (1850, 11685), (2050, 10545), (2109, 10250), (2337, 9250), (2375, 9102), (2775, 7790), (2850, 7585), (3034, 7125), (3075, 7030), (3515, 6150), (3895, 5550), (4218, 5125), (4551, 4750), (4625, 4674)]