21031836

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1$

素因数の和:219

約数の個数: 96

約数和(自身を含む): 59039232

約数和(自身を除く): 38007396

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 37, 42, 67, 74, 84, 101, 111, 134, 148, 201, 202, 222, 259, 268, 303, 402, 404, 444, 469, 518, 606, 707, 777, 804, 938, 1036, 1212, 1407, 1414, 1554, 1876, 2121, 2479, 2814, 2828, 3108, 3737, 4242, 4958, 5628, 6767, 7437, 7474, 8484, 9916, 11211, 13534, 14874, 14948, 17353, 20301, 22422, 26159, 27068, 29748, 34706, 40602, 44844, 47369, 52059, 52318, 69412, 78477, 81204, 94738, 104118, 104636, 142107, 156954, 189476, 208236, 250379, 284214, 313908, 500758, 568428, 751137, 1001516, 1502274, 1752653, 3004548, 3505306, 5257959, 7010612, 10515918, 21031836]

約数ペア:

[(1, 21031836), (2, 10515918), (3, 7010612), (4, 5257959), (6, 3505306), (7, 3004548), (12, 1752653), (14, 1502274), (21, 1001516), (28, 751137), (37, 568428), (42, 500758), (67, 313908), (74, 284214), (84, 250379), (101, 208236), (111, 189476), (134, 156954), (148, 142107), (201, 104636), (202, 104118), (222, 94738), (259, 81204), (268, 78477), (303, 69412), (402, 52318), (404, 52059), (444, 47369), (469, 44844), (518, 40602), (606, 34706), (707, 29748), (777, 27068), (804, 26159), (938, 22422), (1036, 20301), (1212, 17353), (1407, 14948), (1414, 14874), (1554, 13534), (1876, 11211), (2121, 9916), (2479, 8484), (2814, 7474), (2828, 7437), (3108, 6767), (3737, 5628), (4242, 4958)]