21816540

素因数分解:

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

素因数の和:158

約数の個数: 108

約数和(自身を含む): 69667416

約数和(自身を除く): 47850876

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, 201, 243, 268, 270, 324, 335, 402, 405, 486, 540, 603, 670, 804, 810, 972, 1005, 1206, 1215, 1340, 1620, 1809, 2010, 2412, 2430, 3015, 3618, 4020, 4489, 4860, 5427, 6030, 7236, 8978, 9045, 10854, 12060, 13467, 16281, 17956, 18090, 21708, 22445, 26934, 27135, 32562, 36180, 40401, 44890, 53868, 54270, 65124, 67335, 80802, 81405, 89780, 108540, 121203, 134670, 161604, 162810, 202005, 242406, 269340, 325620, 363609, 404010, 484812, 606015, 727218, 808020, 1090827, 1212030, 1454436, 1818045, 2181654, 2424060, 3636090, 4363308, 5454135, 7272180, 10908270, 21816540]

約数ペア:

[(1, 21816540), (2, 10908270), (3, 7272180), (4, 5454135), (5, 4363308), (6, 3636090), (9, 2424060), (10, 2181654), (12, 1818045), (15, 1454436), (18, 1212030), (20, 1090827), (27, 808020), (30, 727218), (36, 606015), (45, 484812), (54, 404010), (60, 363609), (67, 325620), (81, 269340), (90, 242406), (108, 202005), (134, 162810), (135, 161604), (162, 134670), (180, 121203), (201, 108540), (243, 89780), (268, 81405), (270, 80802), (324, 67335), (335, 65124), (402, 54270), (405, 53868), (486, 44890), (540, 40401), (603, 36180), (670, 32562), (804, 27135), (810, 26934), (972, 22445), (1005, 21708), (1206, 18090), (1215, 17956), (1340, 16281), (1620, 13467), (1809, 12060), (2010, 10854), (2412, 9045), (2430, 8978), (3015, 7236), (3618, 6030), (4020, 5427), (4489, 4860)]