21382380

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:285

約数の個数: 120

約数和(自身を含む): 68424048

約数和(自身を除く): 47041668

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 67, 81, 90, 108, 134, 135, 162, 180, 197, 201, 268, 270, 324, 335, 394, 402, 405, 540, 591, 603, 670, 788, 804, 810, 985, 1005, 1182, 1206, 1340, 1620, 1773, 1809, 1970, 2010, 2364, 2412, 2955, 3015, 3546, 3618, 3940, 4020, 5319, 5427, 5910, 6030, 7092, 7236, 8865, 9045, 10638, 10854, 11820, 12060, 13199, 15957, 17730, 18090, 21276, 21708, 26398, 26595, 27135, 31914, 35460, 36180, 39597, 52796, 53190, 54270, 63828, 65995, 79194, 79785, 106380, 108540, 118791, 131990, 158388, 159570, 197985, 237582, 263980, 319140, 356373, 395970, 475164, 593955, 712746, 791940, 1069119, 1187910, 1425492, 1781865, 2138238, 2375820, 3563730, 4276476, 5345595, 7127460, 10691190, 21382380]

約数ペア:

[(1, 21382380), (2, 10691190), (3, 7127460), (4, 5345595), (5, 4276476), (6, 3563730), (9, 2375820), (10, 2138238), (12, 1781865), (15, 1425492), (18, 1187910), (20, 1069119), (27, 791940), (30, 712746), (36, 593955), (45, 475164), (54, 395970), (60, 356373), (67, 319140), (81, 263980), (90, 237582), (108, 197985), (134, 159570), (135, 158388), (162, 131990), (180, 118791), (197, 108540), (201, 106380), (268, 79785), (270, 79194), (324, 65995), (335, 63828), (394, 54270), (402, 53190), (405, 52796), (540, 39597), (591, 36180), (603, 35460), (670, 31914), (788, 27135), (804, 26595), (810, 26398), (985, 21708), (1005, 21276), (1182, 18090), (1206, 17730), (1340, 15957), (1620, 13199), (1773, 12060), (1809, 11820), (1970, 10854), (2010, 10638), (2364, 9045), (2412, 8865), (2955, 7236), (3015, 7092), (3546, 6030), (3618, 5910), (3940, 5427), (4020, 5319)]