21505323

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{1021}}^1$

素因数の和:1107

約数の個数: 32

約数和(自身を含む): 35320320

約数和(自身を除く): 13814997

約数列:

[1, 3, 7, 17, 21, 51, 59, 119, 177, 357, 413, 1003, 1021, 1239, 3009, 3063, 7021, 7147, 17357, 21063, 21441, 52071, 60239, 121499, 180717, 364497, 421673, 1024063, 1265019, 3072189, 7168441, 21505323]

約数ペア:

[(1, 21505323), (3, 7168441), (7, 3072189), (17, 1265019), (21, 1024063), (51, 421673), (59, 364497), (119, 180717), (177, 121499), (357, 60239), (413, 52071), (1003, 21441), (1021, 21063), (1239, 17357), (3009, 7147), (3063, 7021)]