21496293

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^2\times {\mathrm{673}}^1$

素因数の和:715

約数の個数: 48

約数和(自身を含む): 39469440

約数和(自身を除く): 17973147

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 169, 189, 273, 351, 507, 673, 819, 1183, 1521, 2019, 2457, 3549, 4563, 4711, 6057, 8749, 10647, 14133, 18171, 26247, 31941, 42399, 61243, 78741, 113737, 127197, 183729, 236223, 341211, 551187, 796159, 1023633, 1653561, 2388477, 3070899, 7165431, 21496293]

約数ペア:

[(1, 21496293), (3, 7165431), (7, 3070899), (9, 2388477), (13, 1653561), (21, 1023633), (27, 796159), (39, 551187), (63, 341211), (91, 236223), (117, 183729), (169, 127197), (189, 113737), (273, 78741), (351, 61243), (507, 42399), (673, 31941), (819, 26247), (1183, 18171), (1521, 14133), (2019, 10647), (2457, 8749), (3549, 6057), (4563, 4711)]