21000953340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{787}}^1\times {\mathrm{148249}}^1$

素因数の和:149051

約数の個数: 72

約数和(自身を含む): 63784266000

約数和(自身を除く): 42783312660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 787, 1574, 2361, 3148, 3935, 4722, 7083, 7870, 9444, 11805, 14166, 15740, 23610, 28332, 35415, 47220, 70830, 141660, 148249, 296498, 444747, 592996, 741245, 889494, 1334241, 1482490, 1778988, 2223735, 2668482, 2964980, 4447470, 5336964, 6671205, 8894940, 13342410, 26684820, 116671963, 233343926, 350015889, 466687852, 583359815, 700031778, 1050047667, 1166719630, 1400063556, 1750079445, 2100095334, 2333439260, 3500158890, 4200190668, 5250238335, 7000317780, 10500476670, 21000953340]

約数ペア:

[(1, 21000953340), (2, 10500476670), (3, 7000317780), (4, 5250238335), (5, 4200190668), (6, 3500158890), (9, 2333439260), (10, 2100095334), (12, 1750079445), (15, 1400063556), (18, 1166719630), (20, 1050047667), (30, 700031778), (36, 583359815), (45, 466687852), (60, 350015889), (90, 233343926), (180, 116671963), (787, 26684820), (1574, 13342410), (2361, 8894940), (3148, 6671205), (3935, 5336964), (4722, 4447470), (7083, 2964980), (7870, 2668482), (9444, 2223735), (11805, 1778988), (14166, 1482490), (15740, 1334241), (23610, 889494), (28332, 741245), (35415, 592996), (47220, 444747), (70830, 296498), (141660, 148249)]