18241444

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{499}}^1$

素因数の和:572

約数の個数: 48

約数和(自身を含む): 37240000

約数和(自身を除く): 18998556

約数列:

[1, 2, 4, 13, 19, 26, 37, 38, 52, 74, 76, 148, 247, 481, 494, 499, 703, 962, 988, 998, 1406, 1924, 1996, 2812, 6487, 9139, 9481, 12974, 18278, 18463, 18962, 25948, 36556, 36926, 37924, 73852, 123253, 240019, 246506, 350797, 480038, 493012, 701594, 960076, 1403188, 4560361, 9120722, 18241444]

約数ペア:

[(1, 18241444), (2, 9120722), (4, 4560361), (13, 1403188), (19, 960076), (26, 701594), (37, 493012), (38, 480038), (52, 350797), (74, 246506), (76, 240019), (148, 123253), (247, 73852), (481, 37924), (494, 36926), (499, 36556), (703, 25948), (962, 18962), (988, 18463), (998, 18278), (1406, 12974), (1924, 9481), (1996, 9139), (2812, 6487)]