21291606

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:151

約数の個数: 128

約数和(自身を含む): 58982400

約数和(自身を除く): 37690794

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 23, 27, 31, 42, 46, 54, 62, 63, 69, 79, 93, 126, 138, 158, 161, 186, 189, 207, 217, 237, 279, 322, 378, 414, 434, 474, 483, 553, 558, 621, 651, 711, 713, 837, 966, 1106, 1242, 1302, 1422, 1426, 1449, 1659, 1674, 1817, 1953, 2133, 2139, 2449, 2898, 3318, 3634, 3906, 4266, 4278, 4347, 4898, 4977, 4991, 5451, 5859, 6417, 7347, 8694, 9954, 9982, 10902, 11718, 12719, 12834, 14694, 14931, 14973, 16353, 17143, 19251, 22041, 25438, 29862, 29946, 32706, 34286, 38157, 38502, 44082, 44919, 49059, 51429, 56327, 66123, 76314, 89838, 98118, 102858, 112654, 114471, 132246, 134757, 154287, 168981, 228942, 269514, 308574, 337962, 343413, 394289, 462861, 506943, 686826, 788578, 925722, 1013886, 1182867, 1520829, 2365734, 3041658, 3548601, 7097202, 10645803, 21291606]

約数ペア:

[(1, 21291606), (2, 10645803), (3, 7097202), (6, 3548601), (7, 3041658), (9, 2365734), (14, 1520829), (18, 1182867), (21, 1013886), (23, 925722), (27, 788578), (31, 686826), (42, 506943), (46, 462861), (54, 394289), (62, 343413), (63, 337962), (69, 308574), (79, 269514), (93, 228942), (126, 168981), (138, 154287), (158, 134757), (161, 132246), (186, 114471), (189, 112654), (207, 102858), (217, 98118), (237, 89838), (279, 76314), (322, 66123), (378, 56327), (414, 51429), (434, 49059), (474, 44919), (483, 44082), (553, 38502), (558, 38157), (621, 34286), (651, 32706), (711, 29946), (713, 29862), (837, 25438), (966, 22041), (1106, 19251), (1242, 17143), (1302, 16353), (1422, 14973), (1426, 14931), (1449, 14694), (1659, 12834), (1674, 12719), (1817, 11718), (1953, 10902), (2133, 9982), (2139, 9954), (2449, 8694), (2898, 7347), (3318, 6417), (3634, 5859), (3906, 5451), (4266, 4991), (4278, 4977), (4347, 4898)]