19894413

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1213}}^1$

素因数の和:1305

約数の個数: 32

約数和(自身を含む): 33564672

約数和(自身を除く): 13670259

約数列:

[1, 3, 7, 11, 21, 33, 71, 77, 213, 231, 497, 781, 1213, 1491, 2343, 3639, 5467, 8491, 13343, 16401, 25473, 40029, 86123, 93401, 258369, 280203, 602861, 947353, 1808583, 2842059, 6631471, 19894413]

約数ペア:

[(1, 19894413), (3, 6631471), (7, 2842059), (11, 1808583), (21, 947353), (33, 602861), (71, 280203), (77, 258369), (213, 93401), (231, 86123), (497, 40029), (781, 25473), (1213, 16401), (1491, 13343), (2343, 8491), (3639, 5467)]