20685042

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{907}}^1$

素因数の和:1103

約数の個数: 48

約数和(自身を含む): 51559872

約数和(自身を除く): 30874830

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 181, 362, 543, 907, 1086, 1267, 1629, 1814, 2534, 2721, 3258, 3801, 5442, 6349, 7602, 8163, 11403, 12698, 16326, 19047, 22806, 38094, 57141, 114282, 164167, 328334, 492501, 985002, 1149169, 1477503, 2298338, 2955006, 3447507, 6895014, 10342521, 20685042]

約数ペア:

[(1, 20685042), (2, 10342521), (3, 6895014), (6, 3447507), (7, 2955006), (9, 2298338), (14, 1477503), (18, 1149169), (21, 985002), (42, 492501), (63, 328334), (126, 164167), (181, 114282), (362, 57141), (543, 38094), (907, 22806), (1086, 19047), (1267, 16326), (1629, 12698), (1814, 11403), (2534, 8163), (2721, 7602), (3258, 6349), (3801, 5442)]