21339136

素因数分解:

$2^{10}\times 7^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1$

素因数の和:269

約数の個数: 88

約数和(自身を含む): 52730720

約数和(自身を除く): 31391584

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 128, 182, 208, 224, 229, 256, 364, 416, 448, 458, 512, 728, 832, 896, 916, 1024, 1456, 1603, 1664, 1792, 1832, 2912, 2977, 3206, 3328, 3584, 3664, 5824, 5954, 6412, 6656, 7168, 7328, 11648, 11908, 12824, 13312, 14656, 20839, 23296, 23816, 25648, 29312, 41678, 46592, 47632, 51296, 58624, 83356, 93184, 95264, 102592, 117248, 166712, 190528, 205184, 234496, 333424, 381056, 410368, 666848, 762112, 820736, 1333696, 1524224, 1641472, 2667392, 3048448, 5334784, 10669568, 21339136]

約数ペア:

[(1, 21339136), (2, 10669568), (4, 5334784), (7, 3048448), (8, 2667392), (13, 1641472), (14, 1524224), (16, 1333696), (26, 820736), (28, 762112), (32, 666848), (52, 410368), (56, 381056), (64, 333424), (91, 234496), (104, 205184), (112, 190528), (128, 166712), (182, 117248), (208, 102592), (224, 95264), (229, 93184), (256, 83356), (364, 58624), (416, 51296), (448, 47632), (458, 46592), (512, 41678), (728, 29312), (832, 25648), (896, 23816), (916, 23296), (1024, 20839), (1456, 14656), (1603, 13312), (1664, 12824), (1792, 11908), (1832, 11648), (2912, 7328), (2977, 7168), (3206, 6656), (3328, 6412), (3584, 5954), (3664, 5824)]