4001977

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:157

約数の個数: 24

約数和(自身を含む): 5023296

約数和(自身を除く): 1021319

約数列:

[1, 7, 23, 49, 53, 67, 161, 371, 469, 1127, 1219, 1541, 2597, 3283, 3551, 8533, 10787, 24857, 59731, 75509, 81673, 173999, 571711, 4001977]

約数ペア:

[(1, 4001977), (7, 571711), (23, 173999), (49, 81673), (53, 75509), (67, 59731), (161, 24857), (371, 10787), (469, 8533), (1127, 3551), (1219, 3283), (1541, 2597)]