20542401

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 34794240

約数和(自身を除く): 14251839

約数列:

[1, 3, 9, 11, 19, 33, 57, 67, 99, 163, 171, 201, 209, 489, 603, 627, 737, 1273, 1467, 1793, 1881, 2211, 3097, 3819, 5379, 6633, 9291, 10921, 11457, 14003, 16137, 27873, 32763, 34067, 42009, 98289, 102201, 120131, 126027, 207499, 306603, 360393, 622497, 1081179, 1867491, 2282489, 6847467, 20542401]

約数ペア:

[(1, 20542401), (3, 6847467), (9, 2282489), (11, 1867491), (19, 1081179), (33, 622497), (57, 360393), (67, 306603), (99, 207499), (163, 126027), (171, 120131), (201, 102201), (209, 98289), (489, 42009), (603, 34067), (627, 32763), (737, 27873), (1273, 16137), (1467, 14003), (1793, 11457), (1881, 10921), (2211, 9291), (3097, 6633), (3819, 5379)]