21019950

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{6673}}^1$

素因数の和:6698

約数の個数: 72

約数和(自身を含む): 64550928

約数和(自身を除く): 43530978

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 50, 63, 70, 75, 90, 105, 126, 150, 175, 210, 225, 315, 350, 450, 525, 630, 1050, 1575, 3150, 6673, 13346, 20019, 33365, 40038, 46711, 60057, 66730, 93422, 100095, 120114, 140133, 166825, 200190, 233555, 280266, 300285, 333650, 420399, 467110, 500475, 600570, 700665, 840798, 1000950, 1167775, 1401330, 1501425, 2101995, 2335550, 3002850, 3503325, 4203990, 7006650, 10509975, 21019950]

約数ペア:

[(1, 21019950), (2, 10509975), (3, 7006650), (5, 4203990), (6, 3503325), (7, 3002850), (9, 2335550), (10, 2101995), (14, 1501425), (15, 1401330), (18, 1167775), (21, 1000950), (25, 840798), (30, 700665), (35, 600570), (42, 500475), (45, 467110), (50, 420399), (63, 333650), (70, 300285), (75, 280266), (90, 233555), (105, 200190), (126, 166825), (150, 140133), (175, 120114), (210, 100095), (225, 93422), (315, 66730), (350, 60057), (450, 46711), (525, 40038), (630, 33365), (1050, 20019), (1575, 13346), (3150, 6673)]