21527451

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{653}}^1$

素因数の和:713

約数の個数: 40

約数和(自身を含む): 36085104

約数和(自身を除く): 14557653

約数列:

[1, 3, 9, 11, 27, 33, 37, 81, 99, 111, 297, 333, 407, 653, 891, 999, 1221, 1959, 2997, 3663, 5877, 7183, 10989, 17631, 21549, 24161, 32967, 52893, 64647, 72483, 193941, 217449, 265771, 581823, 652347, 797313, 1957041, 2391939, 7175817, 21527451]

約数ペア:

[(1, 21527451), (3, 7175817), (9, 2391939), (11, 1957041), (27, 797313), (33, 652347), (37, 581823), (81, 265771), (99, 217449), (111, 193941), (297, 72483), (333, 64647), (407, 52893), (653, 32967), (891, 24161), (999, 21549), (1221, 17631), (1959, 10989), (2997, 7183), (3663, 5877)]