21361284

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:162

約数の個数: 144

約数和(自身を含む): 66393600

約数和(自身を除く): 45032316

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 29, 36, 37, 42, 58, 63, 74, 79, 84, 87, 111, 116, 126, 148, 158, 174, 203, 222, 237, 252, 259, 261, 316, 333, 348, 406, 444, 474, 518, 522, 553, 609, 666, 711, 777, 812, 948, 1036, 1044, 1073, 1106, 1218, 1332, 1422, 1554, 1659, 1827, 2146, 2212, 2291, 2331, 2436, 2844, 2923, 3108, 3219, 3318, 3654, 4292, 4582, 4662, 4977, 5846, 6438, 6636, 6873, 7308, 7511, 8769, 9164, 9324, 9657, 9954, 11692, 12876, 13746, 15022, 16037, 17538, 19314, 19908, 20461, 20619, 22533, 26307, 27492, 30044, 32074, 35076, 38628, 40922, 41238, 45066, 48111, 52614, 61383, 64148, 67599, 81844, 82476, 84767, 90132, 96222, 105228, 122766, 135198, 144333, 169534, 184149, 192444, 245532, 254301, 270396, 288666, 339068, 368298, 508602, 577332, 593369, 736596, 762903, 1017204, 1186738, 1525806, 1780107, 2373476, 3051612, 3560214, 5340321, 7120428, 10680642, 21361284]

約数ペア:

[(1, 21361284), (2, 10680642), (3, 7120428), (4, 5340321), (6, 3560214), (7, 3051612), (9, 2373476), (12, 1780107), (14, 1525806), (18, 1186738), (21, 1017204), (28, 762903), (29, 736596), (36, 593369), (37, 577332), (42, 508602), (58, 368298), (63, 339068), (74, 288666), (79, 270396), (84, 254301), (87, 245532), (111, 192444), (116, 184149), (126, 169534), (148, 144333), (158, 135198), (174, 122766), (203, 105228), (222, 96222), (237, 90132), (252, 84767), (259, 82476), (261, 81844), (316, 67599), (333, 64148), (348, 61383), (406, 52614), (444, 48111), (474, 45066), (518, 41238), (522, 40922), (553, 38628), (609, 35076), (666, 32074), (711, 30044), (777, 27492), (812, 26307), (948, 22533), (1036, 20619), (1044, 20461), (1073, 19908), (1106, 19314), (1218, 17538), (1332, 16037), (1422, 15022), (1554, 13746), (1659, 12876), (1827, 11692), (2146, 9954), (2212, 9657), (2291, 9324), (2331, 9164), (2436, 8769), (2844, 7511), (2923, 7308), (3108, 6873), (3219, 6636), (3318, 6438), (3654, 5846), (4292, 4977), (4582, 4662)]