18859995

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5443}}^1$

素因数の和:5472

約数の個数: 48

約数和(自身を含む): 40764672

約数和(自身を除く): 21904677

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 385, 495, 693, 1155, 3465, 5443, 16329, 27215, 38101, 48987, 59873, 81645, 114303, 179619, 190505, 244935, 299365, 342909, 419111, 538857, 571515, 898095, 1257333, 1714545, 2095555, 2694285, 3771999, 6286665, 18859995]

約数ペア:

[(1, 18859995), (3, 6286665), (5, 3771999), (7, 2694285), (9, 2095555), (11, 1714545), (15, 1257333), (21, 898095), (33, 571515), (35, 538857), (45, 419111), (55, 342909), (63, 299365), (77, 244935), (99, 190505), (105, 179619), (165, 114303), (231, 81645), (315, 59873), (385, 48987), (495, 38101), (693, 27215), (1155, 16329), (3465, 5443)]