19691695

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:267

約数の個数: 32

約数和(自身を含む): 26827200

約数和(自身を除く): 7135505

約数列:

[1, 5, 17, 19, 85, 89, 95, 137, 323, 445, 685, 1513, 1615, 1691, 2329, 2603, 7565, 8455, 11645, 12193, 13015, 28747, 44251, 60965, 143735, 207281, 221255, 231667, 1036405, 1158335, 3938339, 19691695]

約数ペア:

[(1, 19691695), (5, 3938339), (17, 1158335), (19, 1036405), (85, 231667), (89, 221255), (95, 207281), (137, 143735), (323, 60965), (445, 44251), (685, 28747), (1513, 13015), (1615, 12193), (1691, 11645), (2329, 8455), (2603, 7565)]