19660758

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1$

素因数の和:269

約数の個数: 64

約数和(自身を含む): 44900352

約数和(自身を除く): 25239594

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 47, 62, 78, 93, 94, 141, 173, 186, 282, 346, 403, 519, 611, 806, 1038, 1209, 1222, 1457, 1833, 2249, 2418, 2914, 3666, 4371, 4498, 5363, 6747, 8131, 8742, 10726, 13494, 16089, 16262, 18941, 24393, 32178, 37882, 48786, 56823, 69719, 105703, 113646, 139438, 209157, 211406, 252061, 317109, 418314, 504122, 634218, 756183, 1512366, 3276793, 6553586, 9830379, 19660758]

約数ペア:

[(1, 19660758), (2, 9830379), (3, 6553586), (6, 3276793), (13, 1512366), (26, 756183), (31, 634218), (39, 504122), (47, 418314), (62, 317109), (78, 252061), (93, 211406), (94, 209157), (141, 139438), (173, 113646), (186, 105703), (282, 69719), (346, 56823), (403, 48786), (519, 37882), (611, 32178), (806, 24393), (1038, 18941), (1209, 16262), (1222, 16089), (1457, 13494), (1833, 10726), (2249, 8742), (2418, 8131), (2914, 6747), (3666, 5363), (4371, 4498)]