19858465

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{317}}^1$

素因数の和:417

約数の個数: 32

約数和(自身を含む): 28024704

約数和(自身を除く): 8166239

約数列:

[1, 5, 11, 17, 55, 67, 85, 187, 317, 335, 737, 935, 1139, 1585, 3487, 3685, 5389, 5695, 12529, 17435, 21239, 26945, 59279, 62645, 106195, 233629, 296395, 361063, 1168145, 1805315, 3971693, 19858465]

約数ペア:

[(1, 19858465), (5, 3971693), (11, 1805315), (17, 1168145), (55, 361063), (67, 296395), (85, 233629), (187, 106195), (317, 62645), (335, 59279), (737, 26945), (935, 21239), (1139, 17435), (1585, 12529), (3487, 5695), (3685, 5389)]