21053428

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{619}}^1\times {\mathrm{773}}^1$

素因数の和:1407

約数の個数: 24

約数和(自身を含む): 40309920

約数和(自身を除く): 19256492

約数列:

[1, 2, 4, 11, 22, 44, 619, 773, 1238, 1546, 2476, 3092, 6809, 8503, 13618, 17006, 27236, 34012, 478487, 956974, 1913948, 5263357, 10526714, 21053428]

約数ペア:

[(1, 21053428), (2, 10526714), (4, 5263357), (11, 1913948), (22, 956974), (44, 478487), (619, 34012), (773, 27236), (1238, 17006), (1546, 13618), (2476, 8503), (3092, 6809)]