20851935

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1753}}^1$

素因数の和:1835

約数の個数: 32

約数和(自身を含む): 36539328

約数和(自身を除く): 15687393

約数列:

[1, 3, 5, 13, 15, 39, 61, 65, 183, 195, 305, 793, 915, 1753, 2379, 3965, 5259, 8765, 11895, 22789, 26295, 68367, 106933, 113945, 320799, 341835, 534665, 1390129, 1603995, 4170387, 6950645, 20851935]

約数ペア:

[(1, 20851935), (3, 6950645), (5, 4170387), (13, 1603995), (15, 1390129), (39, 534665), (61, 341835), (65, 320799), (183, 113945), (195, 106933), (305, 68367), (793, 26295), (915, 22789), (1753, 11895), (2379, 8765), (3965, 5259)]