21761152

素因数分解:

$2^7\times 7^1\times {\mathrm{149}}^1\times {\mathrm{163}}^1$

素因数の和:333

約数の個数: 64

約数和(自身を含む): 50184000

約数和(自身を除く): 28422848

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 149, 163, 224, 298, 326, 448, 596, 652, 896, 1043, 1141, 1192, 1304, 2086, 2282, 2384, 2608, 4172, 4564, 4768, 5216, 8344, 9128, 9536, 10432, 16688, 18256, 19072, 20864, 24287, 33376, 36512, 48574, 66752, 73024, 97148, 133504, 146048, 170009, 194296, 340018, 388592, 680036, 777184, 1360072, 1554368, 2720144, 3108736, 5440288, 10880576, 21761152]

約数ペア:

[(1, 21761152), (2, 10880576), (4, 5440288), (7, 3108736), (8, 2720144), (14, 1554368), (16, 1360072), (28, 777184), (32, 680036), (56, 388592), (64, 340018), (112, 194296), (128, 170009), (149, 146048), (163, 133504), (224, 97148), (298, 73024), (326, 66752), (448, 48574), (596, 36512), (652, 33376), (896, 24287), (1043, 20864), (1141, 19072), (1192, 18256), (1304, 16688), (2086, 10432), (2282, 9536), (2384, 9128), (2608, 8344), (4172, 5216), (4564, 4768)]