21626595

素因数分解:

$3^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{797}}^1$

素因数の和:881

約数の個数: 40

約数和(自身を含む): 39395664

約数和(自身を除く): 17769069

約数列:

[1, 3, 5, 9, 15, 27, 45, 67, 81, 135, 201, 335, 405, 603, 797, 1005, 1809, 2391, 3015, 3985, 5427, 7173, 9045, 11955, 21519, 27135, 35865, 53399, 64557, 107595, 160197, 266995, 322785, 480591, 800985, 1441773, 2402955, 4325319, 7208865, 21626595]

約数ペア:

[(1, 21626595), (3, 7208865), (5, 4325319), (9, 2402955), (15, 1441773), (27, 800985), (45, 480591), (67, 322785), (81, 266995), (135, 160197), (201, 107595), (335, 64557), (405, 53399), (603, 35865), (797, 27135), (1005, 21519), (1809, 11955), (2391, 9045), (3015, 7173), (3985, 5427)]