21802010

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{347}}^1$

素因数の和:518

約数の個数: 32

約数和(自身を含む): 40390272

約数和(自身を除く): 18588262

約数列:

[1, 2, 5, 10, 61, 103, 122, 206, 305, 347, 515, 610, 694, 1030, 1735, 3470, 6283, 12566, 21167, 31415, 35741, 42334, 62830, 71482, 105835, 178705, 211670, 357410, 2180201, 4360402, 10901005, 21802010]

約数ペア:

[(1, 21802010), (2, 10901005), (5, 4360402), (10, 2180201), (61, 357410), (103, 211670), (122, 178705), (206, 105835), (305, 71482), (347, 62830), (515, 42334), (610, 35741), (694, 31415), (1030, 21167), (1735, 12566), (3470, 6283)]