21407386

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1$

素因数の和:104

約数の個数: 96

約数和(自身を含む): 47037312

約数和(自身を除く): 25629926

約数列:

[1, 2, 7, 11, 13, 14, 17, 22, 26, 34, 37, 74, 77, 91, 119, 143, 154, 182, 187, 221, 238, 259, 286, 289, 374, 407, 442, 481, 518, 578, 629, 814, 962, 1001, 1258, 1309, 1547, 2002, 2023, 2431, 2618, 2849, 3094, 3179, 3367, 3757, 4046, 4403, 4862, 5291, 5698, 6358, 6734, 6919, 7514, 8177, 8806, 10582, 10693, 13838, 16354, 17017, 21386, 22253, 26299, 34034, 37037, 41327, 44506, 48433, 52598, 57239, 74074, 74851, 82654, 89947, 96866, 114478, 117623, 139009, 149702, 179894, 235246, 278018, 289289, 578578, 629629, 823361, 973063, 1259258, 1529099, 1646722, 1946126, 3058198, 10703693, 21407386]

約数ペア:

[(1, 21407386), (2, 10703693), (7, 3058198), (11, 1946126), (13, 1646722), (14, 1529099), (17, 1259258), (22, 973063), (26, 823361), (34, 629629), (37, 578578), (74, 289289), (77, 278018), (91, 235246), (119, 179894), (143, 149702), (154, 139009), (182, 117623), (187, 114478), (221, 96866), (238, 89947), (259, 82654), (286, 74851), (289, 74074), (374, 57239), (407, 52598), (442, 48433), (481, 44506), (518, 41327), (578, 37037), (629, 34034), (814, 26299), (962, 22253), (1001, 21386), (1258, 17017), (1309, 16354), (1547, 13838), (2002, 10693), (2023, 10582), (2431, 8806), (2618, 8177), (2849, 7514), (3094, 6919), (3179, 6734), (3367, 6358), (3757, 5698), (4046, 5291), (4403, 4862)]