19889982

素因数分解:

$2^1\times 3^3\times 7^2\times {\mathrm{7517}}^1$

素因数の和:7542

約数の個数: 48

約数和(自身を含む): 51423120

約数和(自身を除く): 31533138

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 49, 54, 63, 98, 126, 147, 189, 294, 378, 441, 882, 1323, 2646, 7517, 15034, 22551, 45102, 52619, 67653, 105238, 135306, 157857, 202959, 315714, 368333, 405918, 473571, 736666, 947142, 1104999, 1420713, 2209998, 2841426, 3314997, 6629994, 9944991, 19889982]

約数ペア:

[(1, 19889982), (2, 9944991), (3, 6629994), (6, 3314997), (7, 2841426), (9, 2209998), (14, 1420713), (18, 1104999), (21, 947142), (27, 736666), (42, 473571), (49, 405918), (54, 368333), (63, 315714), (98, 202959), (126, 157857), (147, 135306), (189, 105238), (294, 67653), (378, 52619), (441, 45102), (882, 22551), (1323, 15034), (2646, 7517)]