18705424

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1663}}^1$

素因数の和:1727

約数の個数: 40

約数和(自身を含む): 39203840

約数和(自身を除く): 20498416

約数列:

[1, 2, 4, 8, 16, 19, 37, 38, 74, 76, 148, 152, 296, 304, 592, 703, 1406, 1663, 2812, 3326, 5624, 6652, 11248, 13304, 26608, 31597, 61531, 63194, 123062, 126388, 246124, 252776, 492248, 505552, 984496, 1169089, 2338178, 4676356, 9352712, 18705424]

約数ペア:

[(1, 18705424), (2, 9352712), (4, 4676356), (8, 2338178), (16, 1169089), (19, 984496), (37, 505552), (38, 492248), (74, 252776), (76, 246124), (148, 126388), (152, 123062), (296, 63194), (304, 61531), (592, 31597), (703, 26608), (1406, 13304), (1663, 11248), (2812, 6652), (3326, 5624)]