21193669938

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{1297201}}^1$

素因数の和:1297602

約数の個数: 32

約数和(自身を含む): 48567242880

約数和(自身を除く): 27373572942

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 389, 778, 1167, 2334, 2723, 5446, 8169, 16338, 1297201, 2594402, 3891603, 7783206, 9080407, 18160814, 27241221, 54482442, 504611189, 1009222378, 1513833567, 3027667134, 3532278323, 7064556646, 10596834969, 21193669938]

約数ペア:

[(1, 21193669938), (2, 10596834969), (3, 7064556646), (6, 3532278323), (7, 3027667134), (14, 1513833567), (21, 1009222378), (42, 504611189), (389, 54482442), (778, 27241221), (1167, 18160814), (2334, 9080407), (2723, 7783206), (5446, 3891603), (8169, 2594402), (16338, 1297201)]