21327488

素因数分解:

$2^7\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1831}}^1$

素因数の和:1865

約数の個数: 64

約数和(自身を含む): 52321920

約数和(自身を除く): 30994432

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 128, 182, 208, 224, 364, 416, 448, 728, 832, 896, 1456, 1664, 1831, 2912, 3662, 5824, 7324, 11648, 12817, 14648, 23803, 25634, 29296, 47606, 51268, 58592, 95212, 102536, 117184, 166621, 190424, 205072, 234368, 333242, 380848, 410144, 666484, 761696, 820288, 1332968, 1523392, 1640576, 2665936, 3046784, 5331872, 10663744, 21327488]

約数ペア:

[(1, 21327488), (2, 10663744), (4, 5331872), (7, 3046784), (8, 2665936), (13, 1640576), (14, 1523392), (16, 1332968), (26, 820288), (28, 761696), (32, 666484), (52, 410144), (56, 380848), (64, 333242), (91, 234368), (104, 205072), (112, 190424), (128, 166621), (182, 117184), (208, 102536), (224, 95212), (364, 58592), (416, 51268), (448, 47606), (728, 29296), (832, 25634), (896, 23803), (1456, 14648), (1664, 12817), (1831, 11648), (2912, 7324), (3662, 5824)]