21306636

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{859}}^1$

素因数の和:935

約数の個数: 72

約数和(自身を含む): 59164560

約数和(自身を除く): 37857924

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 53, 78, 106, 117, 156, 159, 212, 234, 318, 468, 477, 636, 689, 859, 954, 1378, 1718, 1908, 2067, 2577, 2756, 3436, 4134, 5154, 6201, 7731, 8268, 10308, 11167, 12402, 15462, 22334, 24804, 30924, 33501, 44668, 45527, 67002, 91054, 100503, 134004, 136581, 182108, 201006, 273162, 402012, 409743, 546324, 591851, 819486, 1183702, 1638972, 1775553, 2367404, 3551106, 5326659, 7102212, 10653318, 21306636]

約数ペア:

[(1, 21306636), (2, 10653318), (3, 7102212), (4, 5326659), (6, 3551106), (9, 2367404), (12, 1775553), (13, 1638972), (18, 1183702), (26, 819486), (36, 591851), (39, 546324), (52, 409743), (53, 402012), (78, 273162), (106, 201006), (117, 182108), (156, 136581), (159, 134004), (212, 100503), (234, 91054), (318, 67002), (468, 45527), (477, 44668), (636, 33501), (689, 30924), (859, 24804), (954, 22334), (1378, 15462), (1718, 12402), (1908, 11167), (2067, 10308), (2577, 8268), (2756, 7731), (3436, 6201), (4134, 5154)]