20915076

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{179}}^1$

素因数の和:313

約数の個数: 96

約数和(自身を含む): 60963840

約数和(自身を除く): 40048764

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 107, 156, 179, 182, 214, 273, 321, 358, 364, 428, 537, 546, 642, 716, 749, 1074, 1092, 1253, 1284, 1391, 1498, 2148, 2247, 2327, 2506, 2782, 2996, 3759, 4173, 4494, 4654, 5012, 5564, 6981, 7518, 8346, 8988, 9308, 9737, 13962, 15036, 16289, 16692, 19153, 19474, 27924, 29211, 32578, 38306, 38948, 48867, 57459, 58422, 65156, 76612, 97734, 114918, 116844, 134071, 195468, 229836, 248989, 268142, 402213, 497978, 536284, 746967, 804426, 995956, 1493934, 1608852, 1742923, 2987868, 3485846, 5228769, 6971692, 10457538, 20915076]

約数ペア:

[(1, 20915076), (2, 10457538), (3, 6971692), (4, 5228769), (6, 3485846), (7, 2987868), (12, 1742923), (13, 1608852), (14, 1493934), (21, 995956), (26, 804426), (28, 746967), (39, 536284), (42, 497978), (52, 402213), (78, 268142), (84, 248989), (91, 229836), (107, 195468), (156, 134071), (179, 116844), (182, 114918), (214, 97734), (273, 76612), (321, 65156), (358, 58422), (364, 57459), (428, 48867), (537, 38948), (546, 38306), (642, 32578), (716, 29211), (749, 27924), (1074, 19474), (1092, 19153), (1253, 16692), (1284, 16289), (1391, 15036), (1498, 13962), (2148, 9737), (2247, 9308), (2327, 8988), (2506, 8346), (2782, 7518), (2996, 6981), (3759, 5564), (4173, 5012), (4494, 4654)]