20916532

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{8209}}^1$

素因数の和:8240

約数の個数: 36

約数和(自身を含む): 45861060

約数和(自身を除く): 24944528

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 364, 637, 1274, 2548, 8209, 16418, 32836, 57463, 106717, 114926, 213434, 229852, 402241, 426868, 747019, 804482, 1494038, 1608964, 2988076, 5229133, 10458266, 20916532]

約数ペア:

[(1, 20916532), (2, 10458266), (4, 5229133), (7, 2988076), (13, 1608964), (14, 1494038), (26, 804482), (28, 747019), (49, 426868), (52, 402241), (91, 229852), (98, 213434), (182, 114926), (196, 106717), (364, 57463), (637, 32836), (1274, 16418), (2548, 8209)]