21000980250

素因数分解:

$2^1\times 3^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{491251}}^1$

素因数の和:491293

約数の個数: 96

約数和(自身を含む): 59775543360

約数和(自身を除く): 38774563110

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 25, 30, 38, 45, 50, 57, 75, 90, 95, 114, 125, 150, 171, 190, 225, 250, 285, 342, 375, 450, 475, 570, 750, 855, 950, 1125, 1425, 1710, 2250, 2375, 2850, 4275, 4750, 7125, 8550, 14250, 21375, 42750, 491251, 982502, 1473753, 2456255, 2947506, 4421259, 4912510, 7368765, 8842518, 9333769, 12281275, 14737530, 18667538, 22106295, 24562550, 28001307, 36843825, 44212590, 46668845, 56002614, 61406375, 73687650, 84003921, 93337690, 110531475, 122812750, 140006535, 168007842, 184219125, 221062950, 233344225, 280013070, 368438250, 420019605, 466688450, 552657375, 700032675, 840039210, 1105314750, 1166721125, 1400065350, 2100098025, 2333442250, 3500163375, 4200196050, 7000326750, 10500490125, 21000980250]

約数ペア:

[(1, 21000980250), (2, 10500490125), (3, 7000326750), (5, 4200196050), (6, 3500163375), (9, 2333442250), (10, 2100098025), (15, 1400065350), (18, 1166721125), (19, 1105314750), (25, 840039210), (30, 700032675), (38, 552657375), (45, 466688450), (50, 420019605), (57, 368438250), (75, 280013070), (90, 233344225), (95, 221062950), (114, 184219125), (125, 168007842), (150, 140006535), (171, 122812750), (190, 110531475), (225, 93337690), (250, 84003921), (285, 73687650), (342, 61406375), (375, 56002614), (450, 46668845), (475, 44212590), (570, 36843825), (750, 28001307), (855, 24562550), (950, 22106295), (1125, 18667538), (1425, 14737530), (1710, 12281275), (2250, 9333769), (2375, 8842518), (2850, 7368765), (4275, 4912510), (4750, 4421259), (7125, 2947506), (8550, 2456255), (14250, 1473753), (21375, 982502), (42750, 491251)]