21371168

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1$

素因数の和:250

約数の個数: 96

約数和(自身を含む): 53343360

約数和(自身を除く): 31972192

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 41, 52, 56, 82, 91, 104, 112, 164, 179, 182, 208, 224, 287, 328, 358, 364, 416, 533, 574, 656, 716, 728, 1066, 1148, 1253, 1312, 1432, 1456, 2132, 2296, 2327, 2506, 2864, 2912, 3731, 4264, 4592, 4654, 5012, 5728, 7339, 7462, 8528, 9184, 9308, 10024, 14678, 14924, 16289, 17056, 18616, 20048, 29356, 29848, 32578, 37232, 40096, 51373, 58712, 59696, 65156, 74464, 95407, 102746, 117424, 119392, 130312, 190814, 205492, 234848, 260624, 381628, 410984, 521248, 667849, 763256, 821968, 1335698, 1526512, 1643936, 2671396, 3053024, 5342792, 10685584, 21371168]

約数ペア:

[(1, 21371168), (2, 10685584), (4, 5342792), (7, 3053024), (8, 2671396), (13, 1643936), (14, 1526512), (16, 1335698), (26, 821968), (28, 763256), (32, 667849), (41, 521248), (52, 410984), (56, 381628), (82, 260624), (91, 234848), (104, 205492), (112, 190814), (164, 130312), (179, 119392), (182, 117424), (208, 102746), (224, 95407), (287, 74464), (328, 65156), (358, 59696), (364, 58712), (416, 51373), (533, 40096), (574, 37232), (656, 32578), (716, 29848), (728, 29356), (1066, 20048), (1148, 18616), (1253, 17056), (1312, 16289), (1432, 14924), (1456, 14678), (2132, 10024), (2296, 9308), (2327, 9184), (2506, 8528), (2864, 7462), (2912, 7339), (3731, 5728), (4264, 5012), (4592, 4654)]