18620494

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{277}}^1$

素因数の和:388

約数の個数: 32

約数和(自身を含む): 31024800

約数和(自身を除く): 12404306

約数列:

[1, 2, 19, 29, 38, 58, 61, 122, 277, 551, 554, 1102, 1159, 1769, 2318, 3538, 5263, 8033, 10526, 16066, 16897, 33611, 33794, 67222, 152627, 305254, 321043, 490013, 642086, 980026, 9310247, 18620494]

約数ペア:

[(1, 18620494), (2, 9310247), (19, 980026), (29, 642086), (38, 490013), (58, 321043), (61, 305254), (122, 152627), (277, 67222), (551, 33794), (554, 33611), (1102, 16897), (1159, 16066), (1769, 10526), (2318, 8033), (3538, 5263)]