2640537

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1$

素因数の和:253

約数の個数: 24

約数和(自身を含む): 4031040

約数和(自身を除く): 1390503

約数列:

[1, 3, 9, 29, 67, 87, 151, 201, 261, 453, 603, 1359, 1943, 4379, 5829, 10117, 13137, 17487, 30351, 39411, 91053, 293393, 880179, 2640537]

約数ペア:

[(1, 2640537), (3, 880179), (9, 293393), (29, 91053), (67, 39411), (87, 30351), (151, 17487), (201, 13137), (261, 10117), (453, 5829), (603, 4379), (1359, 1943)]