21255750

素因数分解:

$2^1\times 3^3\times 5^3\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:140

約数の個数: 128

約数和(自身を含む): 61102080

約数和(自身を除く): 39846330

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 45, 47, 50, 54, 67, 75, 90, 94, 125, 134, 135, 141, 150, 201, 225, 235, 250, 270, 282, 335, 375, 402, 423, 450, 470, 603, 670, 675, 705, 750, 846, 1005, 1125, 1175, 1206, 1269, 1350, 1410, 1675, 1809, 2010, 2115, 2250, 2350, 2538, 3015, 3149, 3350, 3375, 3525, 3618, 4230, 5025, 5875, 6030, 6298, 6345, 6750, 7050, 8375, 9045, 9447, 10050, 10575, 11750, 12690, 15075, 15745, 16750, 17625, 18090, 18894, 21150, 25125, 28341, 30150, 31490, 31725, 35250, 45225, 47235, 50250, 52875, 56682, 63450, 75375, 78725, 85023, 90450, 94470, 105750, 141705, 150750, 157450, 158625, 170046, 226125, 236175, 283410, 317250, 393625, 425115, 452250, 472350, 708525, 787250, 850230, 1180875, 1417050, 2125575, 2361750, 3542625, 4251150, 7085250, 10627875, 21255750]

約数ペア:

[(1, 21255750), (2, 10627875), (3, 7085250), (5, 4251150), (6, 3542625), (9, 2361750), (10, 2125575), (15, 1417050), (18, 1180875), (25, 850230), (27, 787250), (30, 708525), (45, 472350), (47, 452250), (50, 425115), (54, 393625), (67, 317250), (75, 283410), (90, 236175), (94, 226125), (125, 170046), (134, 158625), (135, 157450), (141, 150750), (150, 141705), (201, 105750), (225, 94470), (235, 90450), (250, 85023), (270, 78725), (282, 75375), (335, 63450), (375, 56682), (402, 52875), (423, 50250), (450, 47235), (470, 45225), (603, 35250), (670, 31725), (675, 31490), (705, 30150), (750, 28341), (846, 25125), (1005, 21150), (1125, 18894), (1175, 18090), (1206, 17625), (1269, 16750), (1350, 15745), (1410, 15075), (1675, 12690), (1809, 11750), (2010, 10575), (2115, 10050), (2250, 9447), (2350, 9045), (2538, 8375), (3015, 7050), (3149, 6750), (3350, 6345), (3375, 6298), (3525, 6030), (3618, 5875), (4230, 5025)]