201321921

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{78857}}^1$

素因数の和:78920

約数の個数: 16

約数和(自身を含む): 287673984

約数和(自身を除く): 86352063

約数列:

[1, 3, 23, 37, 69, 111, 851, 2553, 78857, 236571, 1813711, 2917709, 5441133, 8753127, 67107307, 201321921]

約数ペア:

[(1, 201321921), (3, 67107307), (23, 8753127), (37, 5441133), (69, 2917709), (111, 1813711), (851, 236571), (2553, 78857)]