19747469812

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{101873}}^1$

素因数の和:101957

約数の個数: 72

約数和(自身を含む): 42923998656

約数和(自身を除く): 23176528844

約数列:

[1, 2, 4, 7, 14, 23, 28, 43, 46, 49, 86, 92, 98, 161, 172, 196, 301, 322, 602, 644, 989, 1127, 1204, 1978, 2107, 2254, 3956, 4214, 4508, 6923, 8428, 13846, 27692, 48461, 96922, 101873, 193844, 203746, 407492, 713111, 1426222, 2343079, 2852444, 4380539, 4686158, 4991777, 8761078, 9372316, 9983554, 16401553, 17522156, 19967108, 30663773, 32803106, 61327546, 65606212, 100752397, 114810871, 122655092, 201504794, 214646411, 229621742, 403009588, 429292822, 459243484, 705266779, 858585644, 1410533558, 2821067116, 4936867453, 9873734906, 19747469812]

約数ペア:

[(1, 19747469812), (2, 9873734906), (4, 4936867453), (7, 2821067116), (14, 1410533558), (23, 858585644), (28, 705266779), (43, 459243484), (46, 429292822), (49, 403009588), (86, 229621742), (92, 214646411), (98, 201504794), (161, 122655092), (172, 114810871), (196, 100752397), (301, 65606212), (322, 61327546), (602, 32803106), (644, 30663773), (989, 19967108), (1127, 17522156), (1204, 16401553), (1978, 9983554), (2107, 9372316), (2254, 8761078), (3956, 4991777), (4214, 4686158), (4508, 4380539), (6923, 2852444), (8428, 2343079), (13846, 1426222), (27692, 713111), (48461, 407492), (96922, 203746), (101873, 193844)]