9901808

素因数分解:

$2^4\times 7^1\times {\mathrm{211}}^1\times {\mathrm{419}}^1$

素因数の和:645

約数の個数: 40

約数和(自身を含む): 22081920

約数和(自身を除く): 12180112

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 211, 419, 422, 838, 844, 1477, 1676, 1688, 2933, 2954, 3352, 3376, 5866, 5908, 6704, 11732, 11816, 23464, 23632, 46928, 88409, 176818, 353636, 618863, 707272, 1237726, 1414544, 2475452, 4950904, 9901808]

約数ペア:

[(1, 9901808), (2, 4950904), (4, 2475452), (7, 1414544), (8, 1237726), (14, 707272), (16, 618863), (28, 353636), (56, 176818), (112, 88409), (211, 46928), (419, 23632), (422, 23464), (838, 11816), (844, 11732), (1477, 6704), (1676, 5908), (1688, 5866), (2933, 3376), (2954, 3352)]