21477170

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{653}}^1$

素因数の和:707

約数の個数: 64

約数和(自身を含む): 47464704

約数和(自身を除く): 25987534

約数列:

[1, 2, 5, 10, 11, 13, 22, 23, 26, 46, 55, 65, 110, 115, 130, 143, 230, 253, 286, 299, 506, 598, 653, 715, 1265, 1306, 1430, 1495, 2530, 2990, 3265, 3289, 6530, 6578, 7183, 8489, 14366, 15019, 16445, 16978, 30038, 32890, 35915, 42445, 71830, 75095, 84890, 93379, 150190, 165209, 186758, 195247, 330418, 390494, 466895, 826045, 933790, 976235, 1652090, 1952470, 2147717, 4295434, 10738585, 21477170]

約数ペア:

[(1, 21477170), (2, 10738585), (5, 4295434), (10, 2147717), (11, 1952470), (13, 1652090), (22, 976235), (23, 933790), (26, 826045), (46, 466895), (55, 390494), (65, 330418), (110, 195247), (115, 186758), (130, 165209), (143, 150190), (230, 93379), (253, 84890), (286, 75095), (299, 71830), (506, 42445), (598, 35915), (653, 32890), (715, 30038), (1265, 16978), (1306, 16445), (1430, 15019), (1495, 14366), (2530, 8489), (2990, 7183), (3265, 6578), (3289, 6530)]