19807784

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{1297}}^1$

素因数の和:1409

約数の個数: 32

約数和(自身を含む): 39251520

約数和(自身を除く): 19443736

約数列:

[1, 2, 4, 8, 23, 46, 83, 92, 166, 184, 332, 664, 1297, 1909, 2594, 3818, 5188, 7636, 10376, 15272, 29831, 59662, 107651, 119324, 215302, 238648, 430604, 861208, 2475973, 4951946, 9903892, 19807784]

約数ペア:

[(1, 19807784), (2, 9903892), (4, 4951946), (8, 2475973), (23, 861208), (46, 430604), (83, 238648), (92, 215302), (166, 119324), (184, 107651), (332, 59662), (664, 29831), (1297, 15272), (1909, 10376), (2594, 7636), (3818, 5188)]