21175350

素因数分解:

$2^1\times 3^1\times 5^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:139

約数の個数: 144

約数和(自身を含む): 63442368

約数和(自身を除く): 42267018

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 43, 49, 50, 67, 70, 75, 86, 98, 105, 129, 134, 147, 150, 175, 201, 210, 215, 245, 258, 294, 301, 335, 350, 402, 430, 469, 490, 525, 602, 645, 670, 735, 903, 938, 1005, 1050, 1075, 1225, 1290, 1407, 1470, 1505, 1675, 1806, 2010, 2107, 2150, 2345, 2450, 2814, 2881, 3010, 3225, 3283, 3350, 3675, 4214, 4515, 4690, 5025, 5762, 6321, 6450, 6566, 7035, 7350, 7525, 8643, 9030, 9849, 10050, 10535, 11725, 12642, 14070, 14405, 15050, 16415, 17286, 19698, 20167, 21070, 22575, 23450, 28810, 31605, 32830, 35175, 40334, 43215, 45150, 49245, 52675, 60501, 63210, 70350, 72025, 82075, 86430, 98490, 100835, 105350, 121002, 141169, 144050, 158025, 164150, 201670, 216075, 246225, 282338, 302505, 316050, 423507, 432150, 492450, 504175, 605010, 705845, 847014, 1008350, 1411690, 1512525, 2117535, 3025050, 3529225, 4235070, 7058450, 10587675, 21175350]

約数ペア:

[(1, 21175350), (2, 10587675), (3, 7058450), (5, 4235070), (6, 3529225), (7, 3025050), (10, 2117535), (14, 1512525), (15, 1411690), (21, 1008350), (25, 847014), (30, 705845), (35, 605010), (42, 504175), (43, 492450), (49, 432150), (50, 423507), (67, 316050), (70, 302505), (75, 282338), (86, 246225), (98, 216075), (105, 201670), (129, 164150), (134, 158025), (147, 144050), (150, 141169), (175, 121002), (201, 105350), (210, 100835), (215, 98490), (245, 86430), (258, 82075), (294, 72025), (301, 70350), (335, 63210), (350, 60501), (402, 52675), (430, 49245), (469, 45150), (490, 43215), (525, 40334), (602, 35175), (645, 32830), (670, 31605), (735, 28810), (903, 23450), (938, 22575), (1005, 21070), (1050, 20167), (1075, 19698), (1225, 17286), (1290, 16415), (1407, 15050), (1470, 14405), (1505, 14070), (1675, 12642), (1806, 11725), (2010, 10535), (2107, 10050), (2150, 9849), (2345, 9030), (2450, 8643), (2814, 7525), (2881, 7350), (3010, 7035), (3225, 6566), (3283, 6450), (3350, 6321), (3675, 5762), (4214, 5025), (4515, 4690)]