21803028

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^3\times {\mathrm{827}}^1$

素因数の和:873

約数の個数: 48

約数和(自身を含む): 55177920

約数和(自身を除く): 33374892

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 169, 338, 507, 676, 827, 1014, 1654, 2028, 2197, 2481, 3308, 4394, 4962, 6591, 8788, 9924, 10751, 13182, 21502, 26364, 32253, 43004, 64506, 129012, 139763, 279526, 419289, 559052, 838578, 1677156, 1816919, 3633838, 5450757, 7267676, 10901514, 21803028]

約数ペア:

[(1, 21803028), (2, 10901514), (3, 7267676), (4, 5450757), (6, 3633838), (12, 1816919), (13, 1677156), (26, 838578), (39, 559052), (52, 419289), (78, 279526), (156, 139763), (169, 129012), (338, 64506), (507, 43004), (676, 32253), (827, 26364), (1014, 21502), (1654, 13182), (2028, 10751), (2197, 9924), (2481, 8788), (3308, 6591), (4394, 4962)]