21929481

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4001}}^1$

素因数の和:4046

約数の個数: 32

約数和(自身を含む): 38419200

約数和(自身を除く): 16489719

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 87, 189, 203, 261, 609, 783, 1827, 4001, 5481, 12003, 28007, 36009, 84021, 108027, 116029, 252063, 348087, 756189, 812203, 1044261, 2436609, 3132783, 7309827, 21929481]

約数ペア:

[(1, 21929481), (3, 7309827), (7, 3132783), (9, 2436609), (21, 1044261), (27, 812203), (29, 756189), (63, 348087), (87, 252063), (189, 116029), (203, 108027), (261, 84021), (609, 36009), (783, 28007), (1827, 12003), (4001, 5481)]