21539388

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:108

約数の個数: 96

約数和(自身を含む): 58643200

約数和(自身を除く): 37103812

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 43, 52, 57, 76, 78, 86, 114, 129, 156, 169, 172, 228, 247, 258, 338, 494, 507, 516, 559, 676, 741, 817, 988, 1014, 1118, 1482, 1634, 1677, 2028, 2197, 2236, 2451, 2964, 3211, 3268, 3354, 4394, 4902, 6422, 6591, 6708, 7267, 8788, 9633, 9804, 10621, 12844, 13182, 14534, 19266, 21242, 21801, 26364, 29068, 31863, 38532, 41743, 42484, 43602, 63726, 83486, 87204, 94471, 125229, 127452, 138073, 166972, 188942, 250458, 276146, 283413, 377884, 414219, 500916, 552292, 566826, 828438, 1133652, 1656876, 1794949, 3589898, 5384847, 7179796, 10769694, 21539388]

約数ペア:

[(1, 21539388), (2, 10769694), (3, 7179796), (4, 5384847), (6, 3589898), (12, 1794949), (13, 1656876), (19, 1133652), (26, 828438), (38, 566826), (39, 552292), (43, 500916), (52, 414219), (57, 377884), (76, 283413), (78, 276146), (86, 250458), (114, 188942), (129, 166972), (156, 138073), (169, 127452), (172, 125229), (228, 94471), (247, 87204), (258, 83486), (338, 63726), (494, 43602), (507, 42484), (516, 41743), (559, 38532), (676, 31863), (741, 29068), (817, 26364), (988, 21801), (1014, 21242), (1118, 19266), (1482, 14534), (1634, 13182), (1677, 12844), (2028, 10621), (2197, 9804), (2236, 9633), (2451, 8788), (2964, 7267), (3211, 6708), (3268, 6591), (3354, 6422), (4394, 4902)]