28262409

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{379}}^1$

素因数の和:509

約数の個数: 32

約数和(自身を含む): 44651520

約数和(自身を除く): 16389111

約数列:

[1, 3, 7, 21, 53, 67, 159, 201, 371, 379, 469, 1113, 1137, 1407, 2653, 3551, 7959, 10653, 20087, 24857, 25393, 60261, 74571, 76179, 140609, 177751, 421827, 533253, 1345829, 4037487, 9420803, 28262409]

約数ペア:

[(1, 28262409), (3, 9420803), (7, 4037487), (21, 1345829), (53, 533253), (67, 421827), (159, 177751), (201, 140609), (371, 76179), (379, 74571), (469, 60261), (1113, 25393), (1137, 24857), (1407, 20087), (2653, 10653), (3551, 7959)]