20129724

素因数分解:

$2^2\times 3^2\times {\mathrm{47}}^1\times {\mathrm{11897}}^1$

素因数の和:11954

約数の個数: 36

約数和(自身を含む): 51970464

約数和(自身を除く): 31840740

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 94, 141, 188, 282, 423, 564, 846, 1692, 11897, 23794, 35691, 47588, 71382, 107073, 142764, 214146, 428292, 559159, 1118318, 1677477, 2236636, 3354954, 5032431, 6709908, 10064862, 20129724]

約数ペア:

[(1, 20129724), (2, 10064862), (3, 6709908), (4, 5032431), (6, 3354954), (9, 2236636), (12, 1677477), (18, 1118318), (36, 559159), (47, 428292), (94, 214146), (141, 142764), (188, 107073), (282, 71382), (423, 47588), (564, 35691), (846, 23794), (1692, 11897)]