21204144

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{241}}^1$

素因数の和:315

約数の個数: 120

約数和(自身を含む): 65537472

約数和(自身を除く): 44333328

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 47, 48, 52, 72, 78, 94, 104, 117, 141, 144, 156, 188, 208, 234, 241, 282, 312, 376, 423, 468, 482, 564, 611, 624, 723, 752, 846, 936, 964, 1128, 1222, 1446, 1692, 1833, 1872, 1928, 2169, 2256, 2444, 2892, 3133, 3384, 3666, 3856, 4338, 4888, 5499, 5784, 6266, 6768, 7332, 8676, 9399, 9776, 10998, 11327, 11568, 12532, 14664, 17352, 18798, 21996, 22654, 25064, 28197, 29328, 33981, 34704, 37596, 43992, 45308, 50128, 56394, 67962, 75192, 87984, 90616, 101943, 112788, 135924, 147251, 150384, 181232, 203886, 225576, 271848, 294502, 407772, 441753, 451152, 543696, 589004, 815544, 883506, 1178008, 1325259, 1631088, 1767012, 2356016, 2650518, 3534024, 5301036, 7068048, 10602072, 21204144]

約数ペア:

[(1, 21204144), (2, 10602072), (3, 7068048), (4, 5301036), (6, 3534024), (8, 2650518), (9, 2356016), (12, 1767012), (13, 1631088), (16, 1325259), (18, 1178008), (24, 883506), (26, 815544), (36, 589004), (39, 543696), (47, 451152), (48, 441753), (52, 407772), (72, 294502), (78, 271848), (94, 225576), (104, 203886), (117, 181232), (141, 150384), (144, 147251), (156, 135924), (188, 112788), (208, 101943), (234, 90616), (241, 87984), (282, 75192), (312, 67962), (376, 56394), (423, 50128), (468, 45308), (482, 43992), (564, 37596), (611, 34704), (624, 33981), (723, 29328), (752, 28197), (846, 25064), (936, 22654), (964, 21996), (1128, 18798), (1222, 17352), (1446, 14664), (1692, 12532), (1833, 11568), (1872, 11327), (1928, 10998), (2169, 9776), (2256, 9399), (2444, 8676), (2892, 7332), (3133, 6768), (3384, 6266), (3666, 5784), (3856, 5499), (4338, 4888)]