19805752

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{569}}^1$

素因数の和:823

約数の個数: 32

約数和(自身を含む): 39330000

約数和(自身を除く): 19524248

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 229, 458, 569, 916, 1138, 1832, 2276, 4351, 4552, 8702, 10811, 17404, 21622, 34808, 43244, 86488, 130301, 260602, 521204, 1042408, 2475719, 4951438, 9902876, 19805752]

約数ペア:

[(1, 19805752), (2, 9902876), (4, 4951438), (8, 2475719), (19, 1042408), (38, 521204), (76, 260602), (152, 130301), (229, 86488), (458, 43244), (569, 34808), (916, 21622), (1138, 17404), (1832, 10811), (2276, 8702), (4351, 4552)]