21000316624

素因数分解:

$2^4\times 7^1\times {\mathrm{197}}^1\times {\mathrm{951791}}^1$

素因数の和:952003

約数の個数: 40

約数和(自身を含む): 46736794368

約数和(自身を除く): 25736477744

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 197, 394, 788, 1379, 1576, 2758, 3152, 5516, 11032, 22064, 951791, 1903582, 3807164, 6662537, 7614328, 13325074, 15228656, 26650148, 53300296, 106600592, 187502827, 375005654, 750011308, 1312519789, 1500022616, 2625039578, 3000045232, 5250079156, 10500158312, 21000316624]

約数ペア:

[(1, 21000316624), (2, 10500158312), (4, 5250079156), (7, 3000045232), (8, 2625039578), (14, 1500022616), (16, 1312519789), (28, 750011308), (56, 375005654), (112, 187502827), (197, 106600592), (394, 53300296), (788, 26650148), (1379, 15228656), (1576, 13325074), (2758, 7614328), (3152, 6662537), (5516, 3807164), (11032, 1903582), (22064, 951791)]