21221942

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{773}}^1$

素因数の和:872

約数の個数: 32

約数和(自身を含む): 38117952

約数和(自身を除く): 16896010

約数列:

[1, 2, 7, 14, 37, 53, 74, 106, 259, 371, 518, 742, 773, 1546, 1961, 3922, 5411, 10822, 13727, 27454, 28601, 40969, 57202, 81938, 200207, 286783, 400414, 573566, 1515853, 3031706, 10610971, 21221942]

約数ペア:

[(1, 21221942), (2, 10610971), (7, 3031706), (14, 1515853), (37, 573566), (53, 400414), (74, 286783), (106, 200207), (259, 81938), (371, 57202), (518, 40969), (742, 28601), (773, 27454), (1546, 13727), (1961, 10822), (3922, 5411)]