21090342

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{107}}^1$

素因数の和:170

約数の個数: 96

約数和(自身を含む): 55302912

約数和(自身を除く): 34212570

約数列:

[1, 2, 3, 6, 7, 13, 14, 19, 21, 26, 38, 39, 42, 57, 78, 91, 107, 114, 133, 182, 214, 247, 266, 273, 321, 361, 399, 494, 546, 642, 722, 741, 749, 798, 1083, 1391, 1482, 1498, 1729, 2033, 2166, 2247, 2527, 2782, 3458, 4066, 4173, 4494, 4693, 5054, 5187, 6099, 7581, 8346, 9386, 9737, 10374, 12198, 14079, 14231, 15162, 19474, 26429, 28158, 28462, 29211, 32851, 38627, 42693, 52858, 58422, 65702, 77254, 79287, 85386, 98553, 115881, 158574, 185003, 197106, 231762, 270389, 370006, 502151, 540778, 555009, 811167, 1004302, 1110018, 1506453, 1622334, 3012906, 3515057, 7030114, 10545171, 21090342]

約数ペア:

[(1, 21090342), (2, 10545171), (3, 7030114), (6, 3515057), (7, 3012906), (13, 1622334), (14, 1506453), (19, 1110018), (21, 1004302), (26, 811167), (38, 555009), (39, 540778), (42, 502151), (57, 370006), (78, 270389), (91, 231762), (107, 197106), (114, 185003), (133, 158574), (182, 115881), (214, 98553), (247, 85386), (266, 79287), (273, 77254), (321, 65702), (361, 58422), (399, 52858), (494, 42693), (546, 38627), (642, 32851), (722, 29211), (741, 28462), (749, 28158), (798, 26429), (1083, 19474), (1391, 15162), (1482, 14231), (1498, 14079), (1729, 12198), (2033, 10374), (2166, 9737), (2247, 9386), (2527, 8346), (2782, 7581), (3458, 6099), (4066, 5187), (4173, 5054), (4494, 4693)]