20502603

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{281}}^1$

素因数の和:376

約数の個数: 36

約数和(自身を含む): 33155304

約数和(自身を除く): 12652701

約数列:

[1, 3, 9, 11, 33, 67, 99, 121, 201, 281, 363, 603, 737, 843, 1089, 2211, 2529, 3091, 6633, 8107, 9273, 18827, 24321, 27819, 34001, 56481, 72963, 102003, 169443, 207097, 306009, 621291, 1863873, 2278067, 6834201, 20502603]

約数ペア:

[(1, 20502603), (3, 6834201), (9, 2278067), (11, 1863873), (33, 621291), (67, 306009), (99, 207097), (121, 169443), (201, 102003), (281, 72963), (363, 56481), (603, 34001), (737, 27819), (843, 24321), (1089, 18827), (2211, 9273), (2529, 8107), (3091, 6633)]