21441915

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4813}}^1$

素因数の和:4841

約数の個数: 40

約数和(自身を含む): 41939568

約数和(自身を除く): 20497653

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 135, 165, 297, 405, 495, 891, 1485, 4455, 4813, 14439, 24065, 43317, 52943, 72195, 129951, 158829, 216585, 264715, 389853, 476487, 649755, 794145, 1429461, 1949265, 2382435, 4288383, 7147305, 21441915]

約数ペア:

[(1, 21441915), (3, 7147305), (5, 4288383), (9, 2382435), (11, 1949265), (15, 1429461), (27, 794145), (33, 649755), (45, 476487), (55, 389853), (81, 264715), (99, 216585), (135, 158829), (165, 129951), (297, 72195), (405, 52943), (495, 43317), (891, 24065), (1485, 14439), (4455, 4813)]