21000891300

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{401}}^1\times {\mathrm{174571}}^1$

素因数の和:174989

約数の個数: 72

約数和(自身を含む): 60914455392

約数和(自身を除く): 39913564092

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 300, 401, 802, 1203, 1604, 2005, 2406, 4010, 4812, 6015, 8020, 10025, 12030, 20050, 24060, 30075, 40100, 60150, 120300, 174571, 349142, 523713, 698284, 872855, 1047426, 1745710, 2094852, 2618565, 3491420, 4364275, 5237130, 8728550, 10474260, 13092825, 17457100, 26185650, 52371300, 70002971, 140005942, 210008913, 280011884, 350014855, 420017826, 700029710, 840035652, 1050044565, 1400059420, 1750074275, 2100089130, 3500148550, 4200178260, 5250222825, 7000297100, 10500445650, 21000891300]

約数ペア:

[(1, 21000891300), (2, 10500445650), (3, 7000297100), (4, 5250222825), (5, 4200178260), (6, 3500148550), (10, 2100089130), (12, 1750074275), (15, 1400059420), (20, 1050044565), (25, 840035652), (30, 700029710), (50, 420017826), (60, 350014855), (75, 280011884), (100, 210008913), (150, 140005942), (300, 70002971), (401, 52371300), (802, 26185650), (1203, 17457100), (1604, 13092825), (2005, 10474260), (2406, 8728550), (4010, 5237130), (4812, 4364275), (6015, 3491420), (8020, 2618565), (10025, 2094852), (12030, 1745710), (20050, 1047426), (24060, 872855), (30075, 698284), (40100, 523713), (60150, 349142), (120300, 174571)]