21338070

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{54713}}^1$

素因数の和:54736

約数の個数: 32

約数和(自身を含む): 55151712

約数和(自身を除く): 33813642

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 54713, 109426, 164139, 273565, 328278, 547130, 711269, 820695, 1422538, 1641390, 2133807, 3556345, 4267614, 7112690, 10669035, 21338070]

約数ペア:

[(1, 21338070), (2, 10669035), (3, 7112690), (5, 4267614), (6, 3556345), (10, 2133807), (13, 1641390), (15, 1422538), (26, 820695), (30, 711269), (39, 547130), (65, 328278), (78, 273565), (130, 164139), (195, 109426), (390, 54713)]